The Importance of Daily Vegetable Intake for a Healthy Diet

Does an individual’s ideal daily intake of vegetables depend on age, sex, and activity level?

Daily Serving of Vegetables

Vegetables are ​vital to a healthy diet. Every type offers various nutrients in a unique combination of vitamins, minerals, and phytochemicals. Plus, they are low in fat and calories and packed with fiber. The U.S. Department of Agriculture and other health organizations recommend eating a variety for optimal health. An age guide recommends the number of cups of vegetables that babies and older adults should consume daily. The U.S. Centers for Disease Control and Prevention reports that very few individuals meet the vegetable consumption guidelines, putting them at risk for chronic diseases like diabetes and heart disease. (U.S. Centers for Disease Control and Prevention, 2017)

What Is a Serving?

Current Dietary Guidelines recommend 2 1/2 cups of vegetables or nine servings daily. However, the amount varies by age. Serving sizes are also based on the type of vegetable. Overall, individuals are recommended to consume a variety each day. For most vegetables, a serving equals the amount that will fill one measuring cup. However, a serving of raw leafy greens like spinach and lettuce is two cups (U. S. Department of Agriculture, 2020), and eight ounces of vegetable juice also counts as one cup serving. For those who don’t have a measuring cup or kitchen scale, here are some one-cup equivalents for certain vegetables.

• One large tomato
• One medium potato
• One large ear of corn
• One large sweet pepper
• One large sweet potato
• Two medium carrots
• Five or six broccoli florets

Another way is to use tablespoons—one cup contains around 16 tablespoons, which can be used when calculating servings for babies, toddlers, and young children.

Babies

Most babies are ready to eat solid foods between four and six months. There’s no ideal order, so starting with vegetables is fine. Starting babies with foods like peas, carrots, and squash could help encourage a preference for these foods that will carry on into adulthood, as babies tend to gravitate toward sweet flavors and may only want applesauce and pears, which could lead to not wanting to eat vegetables. It is recommended to start with a few teaspoons at a time. Eventually, they will eat about three or four tablespoons of baby food, like cereal or purees, a few times a day, which can fill about half a cup.

Toddlers 2-3

Toddlers age two to three should consume one cup of vegetables each day. If that sounds like a lot, remember that one cup can be spread throughout the day—it doesn’t have to be finished in a single meal. It also means one cup of various vegetables, not just one type. For example, some baby carrots during breakfast, steamed broccoli for lunch, and roasted sweet potatoes with dinner. Each serving can include four tablespoons that will become one serving. And if the only vegetable the toddler will eat is corn, that’s okay. There are also ways to disguise vegetables so they will eat them, like spinach or kale, which can disappear into a fruit smoothie. Children under five can choke on uncooked fruits and vegetables, so make sure whatever form is safe.

Young Children 4-8

Boys and girls in this age group should eat one and a half cups of vegetables daily. Regarding preparation, it’s fine to eat raw and cooked veggies. However, four-year-olds are still at risk of choking on raw vegetables. Cut carrots, bell peppers, and other vegetables into pieces no larger than a half-inch long so they won’t get stuck in their throat if inadvertently swallowed without chewing properly. And steamed, baked, and roasted vegetables are the healthiest.

Tweens 9-13

During the tween years, nutritional needs vary slightly based on sex. The recommended daily amount for girls is at least two cups. For boys, the recommendation is at least two and a half cups. Tweens of either gender who are especially active benefit from eating more than the suggested minimum. Research shows that boys eat fewer vegetables and fruits than girls. (Bere E. et al., 2008) Offer as much variety of vegetables and ways to prepare to find the ones they enjoy most.

Teens 14-18

Teenage girls should eat at least two and a half cups of vegetables daily, and boys eat at least three cups. Active teens who get 30 minutes of exercise daily may need more. However, it can be harder to monitor their vegetable intake as kids get older and spend more time eating away from home. In all family meals, try to include a variety of healthy prepared vegetables like:

• Raw in salads
• Steamed
• Roasted
• Baked as a side dish
• Folded into omelets
• Added to soups and stews
• Layered on pizzas

Make it easy for teenagers to have vegetables between meals.  Pre-cut carrots, celery, and bell peppers can be kept front and center in the fridge alongside hummus or guacamole for dipping.

Young Adults 19-30

The recommended daily amount of vegetables for individuals ages 19 to 30 is the same as for teens: at least three cups daily for men and at least two and a half cups for women. Those who exercise should include more. If a busy lifestyle makes getting all the vegetables needed difficult, take advantage of options like smoothies, including vegetables, pre-tossed salads, and prepped-for-cooking vegetables at the store. They may be more expensive, but if the time saved makes it easier to eat vegetables, it may be worth it, and eventually, individuals will learn how to prepare their own. Kitchen gadgets, like a smoothie blender, can help with faster preparations.

Adults 31-50

As with young adults, the amount of vegetables should be at least two and a half cups daily for women, three cups for men, and more for those who work out or are physically active.

Older Adults 51-Up

Because the body’s metabolism slows down, individuals 51 and older are advised to cut calories to prevent weight gain. This also applies to calories from vegetables. Women 51 and older should consume around two cups of vegetables daily, and men should consume around two and a half cups. Active older adults should continue to factor in the amount of physical activity with vegetable intake. Individuals should talk to their doctor or see a nutritionist if they want more specific guidance on what to include in their diet.

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Nutrition Fundamentals

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References

U.S. Centers for Disease Control and Prevention. (2017). Only 1 in 10 adults get enough fruits or vegetables. Retrieved from archive.cdc.gov/#/details?url=https://www.cdc.gov/media/releases/2017/p1116-fruit-vegetable-consumption.html

U. S. Department of Agriculture. (2020). Vegetables. Retrieved from www.myplate.gov/eat-healthy/vegetables

Bere, E., Brug, J., & Klepp, K. I. (2008). Why do boys eat less fruit and vegetables than girls?. Public health nutrition, 11(3), 321–325. doi.org/10.1017/S1368980007000729