Nutrition at 15: Sport, Training and Protein From Real Food
Teenagers who train for sport need more food and slightly more protein than their less active friends, and they can meet those needs from ordinary meals. Regular meals, a snack around training and enough water matter more than any powder or pill.
- Young athletes need more total food first, then enough protein.
- Food sources meet teenage protein needs; supplements are rarely necessary.
- Eat a meal or snack with carbohydrate and protein around training.
- Under-eating while training can harm growth, periods and bones.
- Supplement contamination is a real risk for competitive athletes.
What a training teenager needs
A 15-year-old who trains several times a week is fuelling growth and sport at the same time. The first priority is enough total food — energy — because without it, protein gets burned for fuel rather than used for growth and muscle.
Sports nutrition guidance for adolescents, such as the Sports Dietitians Australia position statement, emphasises regular meals and snacks, carbohydrate for fuel, protein spread through the day and good hydration, with supplements generally unnecessary.
Protein from food
| Food | approximate protein |
|---|---|
| 1 katori thick dal | About 7–9 g |
| 1 glass milk | About 8 g |
| 1 katori curd | About 6–8 g |
| 50 g paneer | About 9 g |
| 2 eggs | About 12 g |
| Handful of roasted chana or peanuts | About 6–8 g |
Values are approximate. Including a protein food at each meal and snack covers most teenagers’ needs. Teen sports nutrition goes into more detail.
Around training
- Before: a light meal or snack with carbohydrate 1–3 hours before (poha, banana, roti with dal).
- During long sessions: water, and for very long or hot sessions, something with electrolytes.
- After: a meal or snack with carbohydrate and protein within a couple of hours (curd and fruit, milk and a sandwich, dal-rice).
- Every day: drink water regularly, not just at practice.
ORS versus sports drinks explains when a sports drink is worth it.
Why supplements are not the answer
Most teenagers who eat regular, varied meals do not need protein powders or other sports supplements. For athletes competing in tested sports, there is a further risk: supplements can be contaminated with banned substances. Banned substances in supplements covers this risk.
If a young athlete is struggling to eat enough or has specific needs, a sports dietitian or doctor is the right person to advise.
Watch for under-eating
Training hard without eating enough can slow growth, weaken bones, cause tiredness and, in girls, stop periods. These are signs to talk to a doctor, not to train harder. nutrition at 16 covers breakfast and exam-season eating, and nutrition at 14 iron for girls.
Read next
- Nutrition at 13: Feeding the Growth Spurt
- Nutrition at 17: Body Image, Diet Culture and Eating Safely
- Nutrition at 14: Iron for Girls Once Periods Begin
- Nutrition at 16: Exam Stress, Sleep and the Breakfast Habit
- Protein Powder vs Real Food for Gen Z (India)
- Achieve Fatigue-Free Days: All-in-One Nutrition with Vitamins and Plant Protein
Frequently asked questions
How much protein does a 15-year-old athlete need?
Teen athletes need a little more protein than inactive teenagers, but enough total food comes first. Including a protein food such as dal, milk, curd, paneer, eggs or peanuts at every meal and snack usually covers needs without supplements.
Should teenagers take protein powder?
Most do not need it. Regular meals and snacks can meet a teenager's protein needs, and for competitive athletes supplements carry a risk of contamination with banned substances. A doctor or sports dietitian can advise if there is a specific need.
What should a teenage athlete eat before training?
A light meal or snack with carbohydrate one to three hours before, such as poha, a banana, or roti with dal, plus water.
What should a teen eat after sports practice?
A meal or snack with both carbohydrate and protein within a couple of hours, such as curd with fruit, milk with a sandwich, or dal with rice.
Can training too much affect a teenager's growth?
Training hard without eating enough can slow growth, weaken bones and, in girls, stop periods. These signs should be discussed with a doctor.
Nutrition by age
13 · 14 · 15 · 16 · 17 · 18 · 19 · 20 · 21 · 22 · 23 · 24 · 25 · 26 · 27 · 28 · 29 · 30 · 31 · 32 · 33 · 34 · 35 · 36 · 37 · 38 · 39 · 40 · 41 · 42 · 43 · 44 · 45 · 46 · 47 · 48 · 49 · 50 · 51 · 52 · 53 · 54 · 55 · 56 · 57 · 58 · 59 · 60 · 61 · 62 · 63 · 64 · 65 · 66 · 67 · 68 · 69 · 70 · 71 · 72 · 73 · 74 · 75 · 76 · 77 · 78 · 79 · 80
Sources
- Desbrow B et al., "Sports Dietitians Australia position statement: sports nutrition for the adolescent athlete", International Journal of Sport Nutrition and Exercise Metabolism, 2014;24(5):570-584.
- ICMR-NIN, Nutrient Requirements for Indians (RDA 2020) and Dietary Guidelines for Indians, 2024. nin.res.in
- World Health Organization, WHO guidelines on physical activity and sedentary behaviour, 2020.