Skip to main content

How many calories should your teen eat? The answer is more complex than you think

How to understand your teen's calorie needs

Teenage boy taking food from fridge
Cultura Creative RF / Alamy

As your child grows from infancy to toddlerhood and beyond, a lot of focus is put on their nutritional health. Parents ensure their children are eating the right foods to ensure they are growing, gaining weight, and hitting their physical milestones. But, as kids get older and become teens, their nutritional needs change from when they were younger. Teens can go through a variety of different phases where they never seem interested in eating at all, or they can’t seem to eat enough, leaving many parents to wonder how many calories should a teenager eat a day.

Just like every young child is different, so too are teens, which means their caloric needs are also different. This also means there’s no one answer as to how many calories a teen should eat in a day. Diet culture and disordered eating are also things parents need to be aware of when discussing a teen’s diet, especially if obesity or weight is an issue. Helping teens focus on healthy eating habits is the key to ensuring they are eating enough calories a day, as well as maintaining a healthy weight, and ensuring they are developing a good relationship with food.

Recommended Videos

How many calories should a teenager eat a day to lose weight?

Teenage girls eating pizza happily together.
Robert Daly / iStock

Many factors can impact a teen’s weight, including diet, activity levels, and genetics. According to The Children’s Medical Group, 21% of teenagers in America are obese, and a sensible diet that focuses on gradual weight loss is the best method to ensure lasting weight loss success for teens.

How many calories a teen needs to eat depends on factors including activity level, whether the teen has hit puberty, and the teen’s age. According to the American Academy of Pediatrics, boys, in general, require an average of 2,800 calories per day, while girls require an average of 2,200 calories per day. The Children’s Medical Group notes that teens only need to limit their daily caloric intake by about 500 calories to see a weight loss of 1 to 2 pounds per week while those in puberty can reduce their calories by about half that and still see the same weight loss.

Why healthy eating is still important for teens

Three teen girls enjoying homemade pizza at a party
Ground Picture / Shutterstock

Once kids enter adolescence and their teenage years, it can be hard for parents to monitor their diet like they did when their children were younger. Teens can make their own choices when it comes to what and when they eat and may not always make the healthiest choices. Although everything is fine in moderation, it’s important that teens still make healthy choices when eating to ensure they’re consuming the right amount of nutrients to ensure they don’t experience any health complications like stunted growth, or delayed puberty.

Healthline notes that not only can bad food choices in the teen years carry on into adulthood, but “an inadequate diet can negatively affect mood, energy levels, and athletic and academic performance” during the teenage years.

Is 1,200 calories a day enough for a teenage girl?

Teenage girl jogging
Martin Novak / Shutterstock

The Academy of Nutrition and Dietetics notes that girls between the ages of 11 and 13 need between 1,800 to 2,200 calories per day, while those between the ages of 14 and 18 need 1,800 to 2,400 calories per day, so 1,200 calories a day really isn’t enough for a teenage girl.

Other factors to consider include whether the teenage girl is active in sports or other physical activities which would require even more calories per day. The focus for teenagers should be on educating them not only on how many calories they should be consuming but also on how to eat a balanced diet to make the most out of their food intake without being restrictive.

How many calories should a 14-year-old eat?

Boys playing video games
Clarissa Leahy / Getty Images

While your teen’s activity level and physical build will determine whether more or fewer calories are needed daily, Fueling Teens writes that on average, 14-year-old teenage girls need around 2,000 calories per day while 14-year-old males need an average of 2,400 calories per day.

Active teens may need even more calories each day, depending on their level of activity, while those who are taller with a larger build may also require more calories than a shorter and more slightly built peer.

Should teens count calories?

Teens eating dinner with their parents.
Monkey Business Images / Shutterstock

It can be difficult to be overweight or underweight as a teen, but focusing more on healthy eating versus counting calories is a better way to ensure your teen remains healthy. Katherine Harmer, a registered dietitian nutritionist writes that she doesn’t recommend teens count calories as it can lead to obsessively focusing too much on food and quantities.

Instead, the focus should be on educating teens about making proper food choices, including portion sizes, and allowing them to develop a healthy relationship with food.

What are the signs of disordered eating?

Feet weighing on scale
Terry Vine / Getty Images

Diet culture has a huge impact on teens with about 1 in every 2 teenage girls and 1 in every 4 teenage boys trying dieting to change the shape of their bodies, while more than 1 in 3 girls who are at a healthy weight still try to diet.

Disordered eating is defined by WebMD as “psychological disorders that involve extreme disturbances in eating behavior.” Unfortunately, disordered eating is more common than parents may think, but there are some signs they can watch for, including:

  • Distorted body image
  • Skipping most meals
  • Unusual eating habits (such as eating thousands of calories at one meal or skipping meals)
  • Frequent weighing
  • Extreme weight change
  • Insomnia
  • Constipation
  • Skin rash or dry skin
  • Dental cavities
  • Erosion of tooth enamel
  • Loss of hair or nail quality
  • Hyperactivity and high interest in exercise

If you suspect your teen may have an eating disorder, talk openly about it and reassure your teen that you are there for support. If necessary, contact your family doctor and know there are many treatments — both physical and mental — that can help.

How micronutrient deficiency can impact your teen’s health

Teens standing outside talking.
Alexis Brown / Unsplash

Your teen must be eating a balanced diet, including micronutrients like certain vitamins and minerals. Micronutrient deficiencies can have a significant impact on a teen’s health, as this stage requires essential vitamins and minerals for proper growth and development. Lacking key nutrients such as iron, calcium, vitamin D, and zinc can lead to serious health issues, including anemia, fatigue, poor concentration, and weakened immunity.

A lack of calcium and vitamin D can weaken bones, increasing the risk of fractures. Deficiencies in B vitamins can affect mood, energy levels, and brain function. Since teens experience rapid physical and cognitive changes, ensuring they receive adequate micronutrients through a balanced diet is crucial for their overall well-being and long-term health.

How to teach healthy food choices

Fruits in a bowl and on a table with muffins
Jane Doan / Pexels

It’s hard to monitor what your teen is eating because as your kids get older, they often become responsible for feeding themselves and making their own choices when it comes to meals and snacks. Parents can help their teens make healthy food choices by educating their teenagers on the importance of eating a balanced diet and listening to their bodies for hunger cues.

Nemours KidsHealth also suggests that parents model the kind of behavior around food they want their teens to emulate. If you eat a healthy and balanced diet while occasionally indulging in fewer nutrition options, you’re showing your kids that you can eat healthfully without feeling deprived. Don’t restrict food or use food as a bribery tactic, as that can create an unhealthy relationship with food as your child gets older.

The teenage years are the perfect time to teach kids about moderation and how to create balance in their diet. Educating them on the importance of eating well and staying active doesn’t mean they can’t occasionally enjoy fast food or junk food. Allowing them to understand how food helps fuel their body and the importance of ensuring they are eating adequate calories every day can help them make their own educated decisions as they grow into adults.

Kelli Catana
Contributor
Kelli is a freelance writer who has covered the world of entertainment, pop culture, parenting, and lifestyle for various…
Should you be concerned if your toddler walks on their toes? Experts weigh in
When to call your doctor about your toddler's toe-walking
Toddler sitting down with toes pointing towards camera

Walking is a developmental milestone that is exciting not just for parents but for your little one as well. There's a sense of independence your child will gain once they begin walking that opens up a whole new world of exploration. And once your little one has gone from crawler to walker and has their legs firmly beneath them, you may notice another development — toe-walking.

While it may seem like your new walker is destined for stardom as a ballerina, there could be an underlying physiological or developmental cause for why toddlers walk on their toes; instead of just a quirky preference. Here are just a few reasons your little one might toe-walk and what you can do about it.
Why toddlers walk on their toes

Read more
How to get rid of baby hiccups and why you should
And how to keep your baby from catching them again
Father burping his baby

As an adult, there is nothing that brings you to your knees like getting the hiccups. Imagine how it must feel to be a new baby and get the hiccups. If you have noticed your bundle making those telltale noises, this is how to get rid of baby hiccups and prevent another attack from coming on.
When a baby hiccups

Baby's first hiccups
You might not remember the first time you had the hiccups, and neither will your baby. It might sound a little like a sci-fi movie, but your baby could have had hiccups while still in your stomach. There is no way to know just by feeling your stomach, but those little kicks could have been baby hiccups. 
Baby's next hiccups
A baby can have hiccups the second they are born. As humans with organs that have natural reflexes, we all could get the hiccups at any age. But because a baby doesn't quite know how things work yet, infants up to 12 months old tend to "catch" the hiccups a lot more than at any other time in one's life.
Why babies hiccup

Read more
7 healthy lunch ideas for teens you can make in 10 minutes
Your teen will love these simple but healthy lunch ideas
Avocado toast

Does it seem like your teen never stops eating? If you find your teen constantly reaching for less nutritious snacks instead of healthy meals, you're not alone. Teens may love to scarf down chips and other junk food, but you know they need proper nutrition to keep growing and powering their brains for school. These healthy lunch ideas for teens are so easy your teen can make them themself in minutes.

Learning to cook is an important life skill, and starting teens off with the basics, like toast and pasta, is a good place to start. It's also important to lay a foundation of health from the start by teaching about nutritious meals and how they can be easy to make and delicious to taste. These seven healthy lunch ideas for teens will make both you and them happy.
Easy lunch ideas for teens

Read more