Of this, 0.7 grams come from fiber, and 1.3 grams are natural sugars.
Fats
Tomatillos contain less than half a gram in one medium-sized tomatillo.
Protein
There is less than half a gram of protein per tomatillo.
Vitamins and Minerals
Tomatillos provide:
Vitamin A
Vitamin C
Potassium
And provide several other micronutrients in smaller doses.
Benefits
Tomatillo’s health benefits include the following.
Cardiovascular Health
Tomatillos provide a heart-healthy dietary addition. They are naturally low in sodium and rich in potassium, which could help regulate blood pressure. They provide vitamins A and C and antioxidants against free radicals.
The American Heart Association recommends the consumption of a variety of fruits and vegetables daily for various benefits. One of them is their fiber content. Fiber is the indigestible part of carbohydrates that can help decrease cholesterol by binding and removing cholesterol from the body. Tomatillos contain about one gram of fiber, a recommended addition to a heart-healthy diet. (American Heart Association. 2023)
Potentially Help Reduce Cancer Risk
Tomatillos have several antioxidants with cancer-preventing properties. They are a source of phytochemicals known as withanolides. These natural plant compounds have been shown to induce apoptosis/cell death in colon cancer cells. (Peter T. White et al., 2016) Diets high in fruits and vegetables have been associated with lower risks of cancer, making tomatillos a welcome addition to a high-antioxidant nutrition plan focused on cancer prevention.
Arthritis Symptoms Improvement
The withanolide antioxidants are also anti-inflammatory. Research on withanolides demonstrates clinical benefits in the alleviation of symptoms of osteoarthritis and rheumatoid arthritis. (Peter T. White et al., 2016) Tomatillos may help reduce inflammation, which can make arthritis more manageable.
Vision Loss Prevention
Tomatillos provide a healthy source of key nutrients for eye health. Lutein and zeaxanthin are antioxidants that concentrate in the retina and help protect against environmental deterioration. Tomatillos provide:
Tomatillos are a low-calorie whole food ingredient. Because of their high water content, it’s possible to fill up without adding excess calories. Fresh salsa made with tomatoes or tomatillos is a healthy, flavorful choice that is virtually free of added sugars. (The National Kidney Foundation. 2014)
Adverse Effects
Tomatillos are part of the nightshade family. While there is no conclusive evidence confirming any harmful effects, some individuals report experiencing sensitivity to them. (Cleveland Clinic. 2019) Individuals who believe they may be sensitive to tomatillos should consult a registered dietitian to determine the root cause and ways to improve tolerance.
Allergies
Although rare, serious reactions, including anaphylaxis, are possible even if the individual shows no signs of a tomato allergy.
Individuals unsure about an allergy to tomatillos should see an allergist for testing.
Varieties
Different varieties include yellow, green, and purple. (MacKenzie J. 2018)
Rendidora is a green variety that grows upright with a high yield.
Gulliver Hybrid, Tamayo, Gigante, and Toma Verde are also green but grow in a sprawling pattern.
Choose tomatillos that are firm and green but large enough that they fill up the husks.
When they ripen too long, their flavor becomes bland. (MacKenzie J. 2018)
Storage and Safety
Tomatillos can last months in their husks, spread out in a well-ventilated area. (MacKenzie J. 2018)
Keep them in a paper bag in the refrigerator for no longer than 2 weeks if using sooner.
Do not store in plastic, as this can cause spoilage.
For extended storage, tomatillos may be frozen or canned.
Remove the husks, wash them, and dry them before eating or preparing them for long-term storage.
Preparation
Tomatillos have a distinct flavor and firm texture. They can be eaten whole with no need to seed or core them. (Drost D, Pedersen K. 2020) Use tomatillos for:
White, P. T., Subramanian, C., Motiwala, H. F., & Cohen, M. S. (2016). Natural Withanolides in the Treatment of Chronic Diseases. Advances in experimental medicine and biology, 928, 329–373. doi.org/10.1007/978-3-319-41334-1_14
Individuals that engage in heavy exercise can develop heat cramps from overexertion. Can knowing the causes and symptoms help prevent future episodes from happening?
Heat Cramps
Heat cramps can develop during exercise from overexertion or prolonged exposure to high temperatures. The muscle cramps, spasms, and pain can range from mild to severe.
Electrolytes like sodium, calcium, and magnesium are important for properly functioning muscles, including the heart. The primary role of sweating is to regulate the body’s temperature. (MedlinePlus. 2015) Sweat is mostly water, electrolytes, and sodium. Excessive sweating from physical activity and exertion or a hot environment can cause electrolyte imbalances that lead to cramps, spasms, and other symptoms.
Causes and Activities
Heat cramps most commonly affect individuals who sweat excessively during strenuous activity or are exposed to hot temperatures for prolonged periods. The body and organs need to cool down, which causes sweat production. However, too much sweating can lead to dehydration and electrolyte depletion. (Centers for Disease Control and Prevention. 2022)
Age – Children and adults 65 years and older have the highest risk.
Excessive sweating.
Low sodium diet.
Preexisting Medical Conditions – heart disease, diabetes mellitus, and obesity are conditions that can increase the risk of muscle cramping.
Medications – blood pressure, diuretics, and antidepressants can affect electrolyte balance and hydration.
Alcohol consumption.
Self-Care
If heat cramps begin, immediately stop the activity and look for a cool environment. Rehydrate the body to replenish the fluid loss. Staying hydrated and drinking fluids regularly during intense activity or in a hot environment can help prevent the body from cramping. examples of beverages that increase electrolytes include:
Gently applying pressure and massaging affected muscles can help reduce pain and spasms. As symptoms resolve, it is recommended to not return to strenuous activity too soon because additional exertion can progressively lead to heatstroke or heat exhaustion. (Centers for Disease Control and Prevention. 2021) Heatstroke and heat exhaustion are two heat-related illnesses. (Centers for Disease Control and Prevention. 2022)
Heatstroke is when the body loses the ability to regulate temperature and can cause dangerously high temperatures.
Heat exhaustion is the body’s response to excessive fluid and electrolyte loss.
The majority of heat cramps develop during activities because of the exertion and sweating, causing more electrolytes to be lost and the body to become more dehydrated.
Symptoms can also develop minutes to hours after activity has ceased.
Duration
Most heat-related muscle cramps will resolve with rest and hydration within 30–60 minutes.
If muscle cramping or spasms do not subside within one hour, seek professional medical attention.
For individuals with heart conditions or on a low-sodium diet who develop heat cramps, regardless of duration, medical help is necessary to ensure there are no complications.
For individuals dealing with chronic pain, can undergoing a nerve block procedure help alleviate and manage symptoms?
Nerve Blocks
A nerve block is a procedure done to interrupt/block pain signals due to nerve dysfunction or injury. They can be used for diagnostic or treatment purposes, and their effects can be short or long-term, depending on the type being used.
A temporary nerve block may involve the application or injection that stops pain signals from transmitting for a short time.
For example, in pregnancy, an epidural injection can be used during labor and delivery.
Permanent nerve blocks involve cutting/severing or removing certain parts of a nerve to stop pain signals.
These are used in cases with severe injuries or other chronic pain conditions that have not improved with other treatment approaches.
Treatment Usage
When healthcare providers diagnose a chronic pain condition caused by nerve injury or dysfunction, they may use a nerve block to locate the area generating pain signals. They may perform electromyography and/or a nerve conduction velocity/NCV test to pinpoint the cause of chronic nerve pain. Nerve blocks can also treat chronic neuropathic pain, such as pain caused by nerve damage or compression. Nerve blocks are regularly used to treat back and neck pain caused by herniated discs or spinal stenosis. (Johns Hopkins Medicine. 2024)
Types
Three types include:
Local
Neurolytic
Surgical
All three can be used for conditions that cause chronic pain. However, neurolytic and surgical blocks are permanent and are only used for severe pain that has worsened with other treatments unable to provide relief.
Temporary Blocks
A local block is done by injecting or applying local anesthetics, like lidocaine, to a certain area.
An epidural is a local nerve block that injects steroids or analgesics into an area around the spinal cord.
These are common during pregnancy, labor, and delivery.
Epidurals can also be used to treat chronic neck or back pain due to a compressed spinal nerve.
Local blocks are usually temporary, but in a treatment plan, they can be repeated over time to manage chronic pain from conditions like arthritis, sciatica, and migraines. (NYU Langone Health. 2023)
Permanent Blocks
A neurolytic block uses alcohol, phenol, or thermal agents to treat chronic nerve pain. (National Institute of Neurological Disorders and Stroke. 2023) These procedures damage certain areas of the nerve pathway on purpose so that pain signals cannot be transmitted. A neurolytic block is mainly used for severe chronic pain cases, like pain from cancer or complex regional pain syndrome/CRPS. They are sometimes used to treat ongoing pain from chronic pancreatitis and pain in the chest wall after surgery. (Johns Hopkins Medicine. 2024) (Alberto M. Cappellari et al., 2018)
The neurosurgeon performs a surgical nerve block that involves surgically removing or damaging specific areas of the nerve. (National Institute of Neurological Disorders and Stroke. 2023) A surgical nerve block is only used for severe pain cases, such as cancer pain or trigeminal neuralgia.
Although neurolytic and surgical nerve blocks are permanent procedures, pain symptoms, and sensations can come back if the nerves are able to regrow and repair themselves. (Eun Ji Choi et al., 2016) However, symptoms and sensations may not return months or years after the procedure.
These procedures can have the potential risk of permanent nerve damage. (Anthem BlueCross. 2023) Nerves are sensitive and regenerate slowly, so a tiny error can cause side effects. (D O’Flaherty et al., 2018) Common side effects include:
Muscle paralysis
Weakness
Frequent numbness
In rare cases, the block could irritate the nerve and cause added pain.
Skilled and licensed health practitioners like surgeons, pain management physicians, anesthesiologists, and dentists are trained to perform these procedures carefully.
There is always a risk of nerve damage or injury, but the majority of nerve blocks safely and successfully decrease and help manage chronic pain. (Anthem BlueCross. 2023)
What to Expect
Individuals may feel numbness or soreness and/or notice redness or irritation near or around the area that is temporary.
There can also be swelling, which compresses the nerve and requires time to improve. (Stanford Medicine. 2024)
Individuals may be asked to rest for a certain amount of time after the procedure.
Depending on the type of procedure, individuals may have to spend a few days in a hospital.
Some pain may still be present, but that does not mean the procedure did not work.
Individuals should consult with a healthcare provider about the risks and benefits to ensure it is the right treatment.
Cappellari, A. M., Tiberio, F., Alicandro, G., Spagnoli, D., & Grimoldi, N. (2018). Intercostal Neurolysis for The Treatment of Postsurgical Thoracic Pain: a Case Series. Muscle & nerve, 58(5), 671–675. doi.org/10.1002/mus.26298
Choi, E. J., Choi, Y. M., Jang, E. J., Kim, J. Y., Kim, T. K., & Kim, K. H. (2016). Neural Ablation and Regeneration in Pain Practice. The Korean journal of pain, 29(1), 3–11. doi.org/10.3344/kjp.2016.29.1.3
O’Flaherty, D., McCartney, C. J. L., & Ng, S. C. (2018). Nerve injury after peripheral nerve blockade-current understanding and guidelines. BJA education, 18(12), 384–390. doi.org/10.1016/j.bjae.2018.09.004
For individuals looking to improve overall health and wellness, how can paying attention to non-exercise activities help burn more calories and improve metabolic rates?
Non-Exercise Activity Thermogenesis – NEAT
Non-exercise activity thermogenesis, or NEAT, describes the calories burned by daily movements and activities. These physical movements are not planned or structured exercises, workouts, or sports. It is also referred to as non-exercise physical activity or NEPA. Examples include activities like:
Cleaning
Cooking
Shopping
Playing a musical instrument
Small movements like fidgeting
When buying a few items, carry a basket instead of a shopping cart.
Take the stairs instead of the elevator or escalator.
While these movements might not seem like a lot, they can have a substantial impact on metabolic rates and calorie expenditures. A study followed over 12,000 women for 12 years and found that fidgeting can reduce the risk of death associated with excessive sedentariness. (Gareth Hagger-Johnson et al., 2016)
Calories Burned
The amount of calories burned varies from person to person. A study reported that the number of calories burned from non-exercise activity thermogenesis varies up to 2000 kilocalories a day between two individuals of similar size. (Christian von Loeffelholz et al., 2000). A number of factors can account for this difference, including environment and genetics. Individuals’ occupations and lifestyles can also influence non-exercise activity thermogenesis. For example, two individuals with similar body mass indexes or BMIs but different jobs, sedentariness versus activity, will burn different calorie amounts.
Improving Health
Non-exercise activity thermogenesis is thought to be one of the ways the body manages weight. When gaining weight, NEAT tends to increase, whereas when losing weight, NEAT decreases with individuals sitting more without moving as much. A research review noted that the benefits of non-exercise go well beyond the extra calories expended. (Pedro A. Villablanca et al., 2015). Increasing non-exercise activity thermogenesis reduces the risk of metabolic syndrome, cardiovascular issues, and other health problems. Plus, research shows that inactivity can negate the time and effort put into structured exercise. (John D. Akins et al., 2019). Combating sedentary behavior with non-activity thermogenesis helps increase the benefits of regular workouts.
Incorporating NEAT
There are small ways to incorporate non-exercise activity thermogenesis at work and at home. This could be using a standing desk or stability ball. According to the National Academy of Sports Medicine, a 145-pound person can approximately burn:
102 calories an hour while sitting at work.
174 calories if standing at work.
72 calories extra may not seem like a lot, but it can add up to more than 18,000 calories burned per year, leading to an approximate 5-pound weight loss.
If waiting in line or sitting in traffic, finding small ways to move, like tapping the hands or feet or moving the head to music, helps the body take advantage of non-exercise activity thermogenesis. Making more conscious efforts to move can go a long way in improving health.
Is Motion Key To Healing?
References
Hagger-Johnson, G., Gow, A. J., Burley, V., Greenwood, D., & Cade, J. E. (2016). Sitting Time, Fidgeting, and All-Cause Mortality in the UK Women’s Cohort Study. American journal of preventive medicine, 50(2), 154–160. doi.org/10.1016/j.amepre.2015.06.025
von Loeffelholz, C., & Birkenfeld, A. L. (2022). Non-Exercise Activity Thermogenesis in Human Energy Homeostasis. In K. R. Feingold (Eds.) et. al., Endotext. MDText.com, Inc.
Villablanca, P. A., Alegria, J. R., Mookadam, F., Holmes, D. R., Jr, Wright, R. S., & Levine, J. A. (2015). Nonexercise activity thermogenesis in obesity management. Mayo Clinic proceedings, 90(4), 509–519. doi.org/10.1016/j.mayocp.2015.02.001
Akins, J. D., Crawford, C. K., Burton, H. M., Wolfe, A. S., Vardarli, E., & Coyle, E. F. (2019). Inactivity induces resistance to the metabolic benefits following acute exercise. Journal of applied physiology (Bethesda, Md. : 1985), 126(4), 1088–1094. doi.org/10.1152/japplphysiol.00968.2018
For individuals switching to non-dairy and plant-based diets, can oat milk be a beneficial substitute for non-dairy milk drinkers?
Oat Milk
Oat milk is a dairy-free, lactose-free alternative nearly free of saturated fats, has more protein than most nut-based kinds of milk, adds fiber, and offers a healthy dose of B vitamins and minerals. It contains steel-cut or whole oats soaked in water that are then blended and strained with a cheesecloth or special milk bag that is cheaper to make than almond milk and is environmentally friendly.
Nutrition
Individuals can acquire 27% of daily calcium, 50% of daily vitamin B12, and 46% of daily B2. The nutritional information is for one serving of 1 cup of oat milk. (USDA FoodData Central. 2019)
Calories – 120
Fat – 5 grams
Sodium – 101 milligrams
Carbohydrates – 16 grams
Fiber – 1.9 grams
Sugars – 7 grams
Protein – 3 grams
Calcium – 350.4 milligrams
Vitamin B12 – 1.2 micrograms
Vitamin B2 – 0.6 milligrams
Carbohydrates
According to the United States Department of Agriculture, the number of carbohydrates in a cup of oat milk is 16, higher than other milk products.
However, the carbohydrates come from fiber and not fat.
Because oat milk is made from steel-cut or whole oats, there is more fiber per serving than cow’s milk, which offers no fiber, and almond and soy, which only contain one gram of fiber per serving.
Fats
Oat milk contains no fatty acids, no total saturated fat, and no total trans fats.
The milk does have 5 grams of total lipid fats.
Protein
Compared to cow’s and soy milk, oat milk has less protein, with only 3 grams per serving.
But compared to other substitutes, like almond milk and rice milk, oat milk provides more protein per serving.
This is beneficial for individuals following a vegan or dairy-free diet.
Vitamins and Minerals
Oat milk contains thiamin and folate, both B vitamins necessary for energy production.
The milk also has minerals, including copper, zinc, manganese, magnesium, and trace amounts of vitamins and minerals such as vitamin D, A IU, riboflavin, and potassium.
Most commercial oat milk is fortified with vitamins A, D, B12, and B2.
Calories
One serving of oat milk, about 1 cup, provides approximately 120 calories.
80% outgrow the allergy, but the remaining 20% still deal with the allergy into adulthood, making dairy alternatives necessary.
An alternative to dairy milk for:
Allergies to dairy
Lactose intolerance
Following a vegan/dairy-free diet
Oat milk offers some of the same health benefits as cow’s milk, that include:
Protein to build and repair tissues.
Maintain hair and nail health.
Calcium for strong bones.
Macronutrients like folate help make red and white blood cells.
Lowers Cholesterol
A review determined that consuming oats and oat products has a profound effect in lowering total and LDL cholesterol levels. (Susan A Joyce et al., 2019)
The researchers found significant support between oat beta-glucans and blood cholesterol levels, showing that adding oats to one’s diet can help lower the risk of cardiovascular disease.
Cancer Fighting Properties
According to a review of plant-based milk alternatives, oat milk may contain anti-cancer properties and high nutritional value. (Swati Sethi et al., 2016)
Bowel Movement Regulation
Because a great deal of carbohydrates in oat milk come from fiber, it is also higher in fiber than regular milk.
Fiber can help because the nutrient absorbs water to regulate bowel movements and decrease constipation.
Spending on alternative milk has risen, and the consumption of dairy milk has dropped, not only for the benefits and taste but because of environmental concerns.
Dairy milk uses nine times more land to make one liter compared to rice milk, soy milk, almond milk, or oat milk.
Allergies
Oat milk is a beneficial alternative for individuals who are lactose intolerant or suffer from any other type of dairy allergy or those who have a nut allergy and can’t drink almond milk.
However, individuals should be careful of intake if they have celiac disease or any type of wheat allergy/sensitivity.
Individuals can still drink oat milk, but the labels need to be read to make sure the product contains gluten-free wheat.
Oats are gluten-free, but manufacturers often process them using the same equipment as other wheat products, which could cause a reaction.
Adverse Effects
Oat milk can contain acidity-regulating phosphates, which are common additives in processed foods and are linked to kidney disease.
American College of Allergy, Asthma & Immunology. (2019). Milk & Dairy.
Joyce, S. A., Kamil, A., Fleige, L., & Gahan, C. G. M. (2019). The Cholesterol-Lowering Effect of Oats and Oat Beta Glucan: Modes of Action and Potential Role of Bile Acids and the Microbiome. Frontiers in nutrition, 6, 171. doi.org/10.3389/fnut.2019.00171
Sethi, S., Tyagi, S. K., & Anurag, R. K. (2016). Plant-based milk alternatives an emerging segment of functional beverages: a review. Journal of food science and technology, 53(9), 3408–3423. doi.org/10.1007/s13197-016-2328-3
Quagliani, D., & Felt-Gunderson, P. (2016). Closing America’s Fiber Intake Gap: Communication Strategies From a Food and Fiber Summit. American journal of lifestyle medicine, 11(1), 80–85. doi.org/10.1177/1559827615588079
Nadkarni, G. N., & Uribarri, J. (2014). Phosphorus and the kidney: What is known and what is needed. Advances in nutrition (Bethesda, Md.), 5(1), 98–103. doi.org/10.3945/an.113.004655
For individuals looking to spice up their diet, can jalapeño peppers provide nutrition, and be a good source of vitamins?
Jalapeño Pepper Nutrition
Jalapeños are one of many types of chili peppers that are used to accent or garnish and add heat to a dish. This pepper variety is generally harvested and sold when it is a glossy dark green but turns red as it matures. The following nutrition information for one 14-gram jalapeño pepper. (FoodData Central. U.S. Department of Agriculture. 2018)
Jalapeño peppers contain very little carbohydrates and cannot be tested with the standard GI methodology. (Fiona S. Atkinson et al., 2008)
6 grams of carbohydrates in 1-cup serving has an extremely low glycemic load, meaning the peppers do not raise blood sugar levels rapidly or provoke an insulin response. (Mary-Jon Ludy et al., 2012)
Fat
Jalapeños have a trace amount of fat that is mostly unsaturated.
Protein
The peppers are not a recommended source of protein, as they contain less than a gram of protein in a full cup of sliced jalapeños.
Vitamins and Minerals
One pepper contains about 16 milligrams of vitamin C, about 18% of the recommended daily allowance/RDA.
Jalapeños are a good source of vitamin A, which supports skin and eye health.
In 1/4 cup sliced jalapeño peppers, individuals acquire around 8% of the recommended daily amount of vitamin A for men and 12% for women.
Jalapeños are also a source of vitamins B6, K, and E.
Health Benefits
Many health benefits have been attributed to capsaicin which is the substance that generates the heat in the peppers, including alleviating pain and itching by blocking a neuropeptide that transmits those signals to the brain. (Andrew Chang et al., 2023)
Pain Relief
Research shows capsaicin – supplements or topical ointments/creams – can relieve nerve and joint pain. (Andrew Chang et al., 2023)
Lower the Risk of Heart Disease
A study of individuals with low levels of healthy HDL cholesterol, who are at risk of coronary heart disease/CHD, showed that capsaicin supplements improved risk factors for CHD. (Yu Qin et al., 2017)
Reduce Inflammation
The vitamin C in the peppers acts as an antioxidant, which means it can repair cells damaged by oxidative stress and reduce inflammation.
They can be consumed raw, pickled, canned, or smoked/chipotle peppers and are hotter than fresh or canned because they are dried and treated.
Storage and Safety
Fresh jalapeños can be stored at room temperature for a few days or in the refrigerator for about a week.
Once a jar is opened, keep it in the refrigerator.
For an open can of peppers, transfer to a glass or plastic container for refrigerator storage.
Peppers can be frozen after preparing by cutting off the stems and scooping out the seeds.
Frozen jalapeños are best within 6 months for the best quality, but can be kept for much longer.
Preparation
Removing the seeds can help reduce the heat.
Jalapeños can be eaten whole or sliced and added to salads, marinades, salsa, or cheeses.
Some add jalapeños to smoothies for a spicy kick.
They can be used in various recipes for added heat and tanginess.
Chiropractic, Fitness, and Nutrition
References
FoodData Central. U.S. Department of Agriculture. (2018). Peppers, jalapeno, raw.
Atkinson, F. S., Foster-Powell, K., & Brand-Miller, J. C. (2008). International tables of glycemic index and glycemic load values: 2008. Diabetes care, 31(12), 2281–2283. doi.org/10.2337/dc08-1239
Ludy, M. J., Moore, G. E., & Mattes, R. D. (2012). The effects of capsaicin and capsiate on energy balance: critical review and meta-analyses of studies in humans. Chemical senses, 37(2), 103–121. doi.org/10.1093/chemse/bjr100
National Institutes of Health Office of Dietary Supplements. (2021). Vitamin C: Fact Sheet for Health Professionals.
Chang A, Rosani A, Quick J. Capsaicin. [Updated 2023 May 23]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: www.ncbi.nlm.nih.gov/books/NBK459168/
Qin, Y., Ran, L., Wang, J., Yu, L., Lang, H. D., Wang, X. L., Mi, M. T., & Zhu, J. D. (2017). Capsaicin Supplementation Improved Risk Factors of Coronary Heart Disease in Individuals with Low HDL-C Levels. Nutrients, 9(9), 1037. doi.org/10.3390/nu9091037
American Academy of Allergy Asthma and Immunology. (2017). Ask the Expert: Pepper Allergy.
For individuals trying to optimize muscle growth, protein intake is essential. However, the body is limited by how much protein can synthesize to repair and grow muscles. Can knowing protein intake timing, amount, and how to best stimulate muscle growth help achieve better results?
Muscle Protein Synthesis
Muscle protein synthesis is a physiological process of producing new muscle protein and is an important component of how the body maintains and builds muscle. Muscle growth is achieved with resistance training and protein intake. (Tanner Stokes, et al., 2018)
How Protein Synthesis Works
Protein is the building block of muscles, while protein synthesis is a natural metabolic process in which protein is produced to repair muscle damage caused by exercise. This happens from amino acids binding to skeletal muscle proteins, increasing muscle size. It counteracts muscle protein breakdown (MPB) due to protein loss during exercise. The breakdown of muscles is a necessary part of building muscle. When damaged, muscles will build back larger, so long as enough calories and protein are consumed to repair and grow the muscles. Muscle protein synthesis can be enhanced by increasing protein intake immediately following exercise. Learning to stimulate muscle protein synthesis through exercise and diet can help accelerate muscle growth, expedite recovery, improve physical performance, and increase overall endurance. (Cameron J. Mitchell et al., 2014)
Effects of Exercise
Protein balance describes the relationship between muscle protein breakdown and muscle protein synthesis. When the body is in protein balance, no muscle growth or wasting occurs, and the individual is considered in a healthy state of biological equilibrium/homeostasis, also known as maintenance. To stimulate muscle growth, individuals need to shake up the protein balance. Although it may seem counter-intuitive, exercise can break down muscle protein, but not more than the amount of protein the body can synthesize. (Felipe Damas, et al., 2015) The more intense the workout, the greater the muscle protein synthesis, as the muscle breakdown stimulates the repair and growth of tissues. Scientists measure intensity by the one-repetition maximum – 1-RM – meaning the maximum weight an individual can lift for one repetition. According to a research study, workout intensities of under 40% of the 1-RM will not affect muscle protein synthesis. And intensities greater than 60% will double or triple muscle protein synthesis. (P. J. Atherton, K Smith. 2012)
Food Impact
The relationship between diet and protein balance is not so straightforward. Even with increased protein intake, muscle protein synthesis occurs for a specific period. This is because the body can only utilize a certain amount of the essential amino acids it receives, with anything more being broken down and excreted by the liver. Nutritionists recommend about 1.4 to 2.0 grams of protein per kilogram of body weight per day for building muscle and strength. (Ralf Jäger, et al., 2017) Enough protein can be obtained by focusing on dairy, eggs, lean meats, nuts, and legumes. It is also recommended to consume enough whole grains, healthy fats, fruits, and vegetables to help the body perform and repair properly. For example, carbohydrates are necessary for muscle building as they stimulate insulin release that supports muscle cell protein absorption. (Vandré Casagrande Figueiredo, David Cameron-Smith. 2013) A study looked into response rates in men prescribed 10, 20, or 40 grams of whey protein immediately following resistance training. Researchers noted the following results: (Oliver C. Witard et al., 2014)
10 grams of whey protein – No effect on muscle protein synthesis.
20 grams – Increased muscle protein synthesis by 49%.
40 grams – Increased the muscle protein synthesis by 56% but also caused the excessive accumulation of urea.
Consuming 20 grams to 40 grams of whey protein after resistance training also increased other essential amino acids associated with lean muscle growth. (Lindsay S. Macnaughton et al., 2016)
Whey protein is a fast-digesting protein.
Increased results can be obtained by consuming slower-digesting protein throughout the day.
Muscle gains vary from person to person as everyone’s body is different. Individuals considering consuming protein beyond the recommended dietary intake should consult their doctor or a registered nutritionist to understand the potential benefits and risks.
Building A Stronger Body
References
Stokes, T., Hector, A. J., Morton, R. W., McGlory, C., & Phillips, S. M. (2018). Recent Perspectives Regarding the Role of Dietary Protein for the Promotion of Muscle Hypertrophy with Resistance Exercise Training. Nutrients, 10(2), 180. doi.org/10.3390/nu10020180
Mitchell, C. J., Churchward-Venne, T. A., Parise, G., Bellamy, L., Baker, S. K., Smith, K., Atherton, P. J., & Phillips, S. M. (2014). Acute post-exercise myofibrillar protein synthesis is not correlated with resistance training-induced muscle hypertrophy in young men. PloS one, 9(2), e89431. doi.org/10.1371/journal.pone.0089431
Damas, F., Phillips, S., Vechin, F. C., & Ugrinowitsch, C. (2015). A review of resistance training-induced changes in skeletal muscle protein synthesis and their contribution to hypertrophy. Sports medicine (Auckland, N.Z.), 45(6), 801–807. doi.org/10.1007/s40279-015-0320-0
Atherton, P. J., & Smith, K. (2012). Muscle protein synthesis in response to nutrition and exercise. The Journal of physiology, 590(5), 1049–1057. doi.org/10.1113/jphysiol.2011.225003
Jäger, R., Kerksick, C. M., Campbell, B. I., Cribb, P. J., Wells, S. D., Skwiat, T. M., Purpura, M., Ziegenfuss, T. N., Ferrando, A. A., Arent, S. M., Smith-Ryan, A. E., Stout, J. R., Arciero, P. J., Ormsbee, M. J., Taylor, L. W., Wilborn, C. D., Kalman, D. S., Kreider, R. B., Willoughby, D. S., Hoffman, J. R., … Antonio, J. (2017). International Society of Sports Nutrition Position Stand: protein and exercise. Journal of the International Society of Sports Nutrition, 14, 20. doi.org/10.1186/s12970-017-0177-8
Figueiredo, V. C., & Cameron-Smith, D. (2013). Is carbohydrate needed to further stimulate muscle protein synthesis/hypertrophy following resistance exercise?. Journal of the International Society of Sports Nutrition, 10(1), 42. doi.org/10.1186/1550-2783-10-42
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