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What Young Athletes Actually Need — A Parent's and Coach's Guide to Sports Nutrition

Most parents and coaches of adolescent athletes I work with want to do the right thing. They just don't know where to start.

The information online is either built for adults or generic to children. Adolescence is its own category — growth, training, and habit formation all happening at the same time. Get this window right and it sets habits that last decades. Get it wrong and you risk under-fuelling, growth issues, and burnout long before the athlete reaches their potential.


This nutrition guide is written for parents and coaches of adolescent athletes aged 12–18yrs — what to focus on, what to avoid, and where the homemade Indian kitchen quietly does the job better than anything sold in a tin.


A Parent and Coach's Guide to Young athlete nutrition
A Parent and Coach's Guide to Young athlete nutrition

Quick Overview



Why Adolescence Nutrition Is Different

Adolescent athletes are doing three things at once — growing, developing cognitively, and training. Their energy needs are proportionally higher than adults. Their nutrition gaps have longer-term consequences. And the eating habits they form now tend to stick.


A 2023 review in the Journal of the Pediatric Orthopaedic Society of North America (Hecht et al.) found that over half of adolescents receive inadequate nutrition. A 2025 paper in Nutrients (Peters et al.) noted that low energy availability in this age group is particularly damaging — it affects bone density, hormonal development, and growth maturation in ways that don't always recover.


This isn't a phase where small mistakes get absorbed. The body is building.



Energy Needs of Young Athletes

Active adolescent athletes need significantly more energy than their sedentary peers. Rough guidance:

Boys, training regularly: 2,500–3,500 kcal per day

Girls, training regularly: 2,000–2,800 kcal per day


Higher in heavy training blocks. Under-fuelling at this age isn't just a performance issue — it has long-term consequences for bone development, growth, and hormonal maturation. Dieting for body composition without professional guidance is genuinely risky here.



Macros — The Building Blocks

  • Carbohydrates are the most under-consumed macro in young athletes.

Target 5–8g per kg of bodyweight.

Indian sources: rice, roti, oats, bananas, ragi, poha, idli, dosa, upma, sweet potato, fruits, jaggery.

Carbs are not the enemy at this age. They are fuel for both training and growth.


  • Protein needs sit between 1.2 and 1.6g per kg of bodyweight, distributed across meals.

Indian vegetarian sources: dal (toor, moong, masoor, urad, chana), rajma, kala chana, paneer, milk, curd, eggs (where included), soya chunks, tofu, sprouts.

Indian non-vegetarian sources: chicken, fish (rohu, surmai, pomfret), prawns, mutton, eggs, liver.

Distribution matters more than total — spread protein across 4–5 eating occasions through the day rather than loading it into one meal.


  • Fats should make up 25–30% of total energy.

Indian sources: ghee, mustard oil, coconut oil, til, almonds, walnuts, peanuts, til chikki, almond laddoos, full-fat dairy. For non-vegetarians: fish provides omega-3 alongside protein.

Healthy fats matter particularly in this window because hormonal development depends on them.



Hydration for Young Athletes

Adolescents thermoregulate less efficiently than adults. Their sweat rate is proportionally higher, their heat tolerance lower, and their thirst response less reliable — they often don't feel thirsty until they're already significantly dehydrated.


In Indian conditions, this matters even more. School and club sessions routinely happen in 30–40°C heat. Even a 2% drop in body water reduces performance, increases perceived effort, and raises the risk of heat illness. Signs of dehydration are easy to miss — dark urine, headaches, sluggishness, cramping, irritability. By the time they show up, the athlete is already behind.


Daily baseline: water alone is enough. 1.5–2.5 litres per day, plus 500–750ml per hour of activity. Sipped throughout the day, not just around training.


For sessions over 60 minutes or in serious heat, electrolytes and a small amount of carbohydrate make hydration more effective. The Indian kitchen has excellent homemade options:

  • Nimbu paani with rock salt — 250ml water + juice of half a lemon + a pinch of rock salt + 1 tsp jaggery or honey. Matches the carb-electrolyte profile of commercial sports drinks without the artificial colours or excess sugar.

  • Sattu sharbat — 2 tbsp sattu + water + lemon + a pinch of salt + a touch of jaggery. Hydration plus protein in a single drink. Sattu (roasted chana flour) provides roughly 20g of protein per 100g along with meaningful iron and calcium — particularly useful for vegetarian athletes after long sessions in heat.


Other traditional options that work just as well:

Coconut water — naturally rich in potassium and sodium, ready to drink

Aam panna — green mango + jaggery + roasted cumin + black salt; high in electrolytes, ideal for summer


A quick word on Electral. A common assumption in Indian parenting is that Electral is a safe everyday hydration drink. It isn't. Electral is a clinical-grade Oral Rehydration Solution, formulated for acute dehydration — diarrhoea, vomiting, severe heat illness. WHO and Indian health guidelines are clear: it is not for daily use. Sodium content is too high for routine hydration, and regular consumption can disrupt the body's natural electrolyte balance.

Use it when it's actually needed — recovery from stomach illness, acute heat exhaustion. For everyday training, water and homemade options do the job better and more safely.



Micronutrients That Matter Most

  • Iron

    Boys 14+ need 11mg per day, girls 14+ need 15mg. The Indian vegetarian context creates a real challenge: plant iron absorbs at only 2–10%, compared to 15–35% for iron from meat.


    Two simple homemade habits address this:

    • Pair every iron-rich meal with vitamin C — lemon on dal, amla with ragi, tomato in salad. This single habit can triple iron absorption.

    • Soak grains and dals for 8 or more hours before cooking — removes 30–60% of phytic acid, which otherwise blocks iron absorption.


    Indian vegetarian sources: ragi (3.9mg/100g), sesame/til (14.5mg/100g), horse gram, moringa leaves, kala chana, rajma, dal, dates, jaggery, spinach, beetroot.


    Indian non-vegetarian sources: chicken liver, red meat (mutton), egg yolks, fish (especially smaller fish eaten whole), prawns.


    Practical snacks: til chikki, kala chana chaat with tomato and lemon, ragi laddoos.


  • Calcium

    1,300mg per day. Peak bone mass is built before age 20. This is non-negotiable.


    Indian vegetarian sources: milk, curd, paneer, ragi (344mg per 100g — more than milk weight-for-weight), sesame seeds, almonds, leafy greens (palak, methi, drumstick leaves), tofu, soya milk.


    Indian non-vegetarian sources: small fish eaten with bones (such as anchovies), eggs.


    A bowl of ragi porridge in the morning hits both calcium and iron in one serving.


  • Vitamin D

    600 IU per day. Despite Indian sun exposure, deficiency rates exceed 70% in many studies. Indoor lifestyles, modesty norms, pollution, and the fact that most school days fall during peak sun hours all contribute.

    The homemade approach: 30–45 minutes of direct sun on the face, arms, and legs, 4–5 times a week, ideally between 11am and 2pm — which is when UVB is strongest at Indian latitudes. Darker skin needs longer exposure than lighter skin to produce the same amount of vitamin D. Apply sunscreen for any longer time outdoors to avoid sunburn.

    This is the recommendation from the Indian Academy of Pediatrics, and it aligns with international guidance from the NIH and global vitamin D research.


    Indian vegetarian food sources (limited): fortified milk, fortified cereals, mushrooms exposed to sunlight, egg yolks (for ovo-vegetarians).


    Indian non-vegetarian sources: fatty fish (rohu, surmai, sardines), egg yolks, liver.


    For confirmed deficiency, sun exposure alone often isn't enough. Supplementation under medical guidance is the more reliable route — only after a blood test.



Eating Around Training

Pre-training (1–2 hours before): carb-focused, low-fat, easy to digest. Banana, idli with sambar, poha, roti with curd, ragi dosa.


During (sessions over 60 minutes): water or homemade nimbu paani.


Post-training: the strict "1-hour anabolic window" is largely a myth — confirmed by a foundational 2013 paper by Aragon and Schoenfeld and reinforced repeatedly since.

For adolescents specifically, what matters is consistency across the day — protein and carbs distributed every 3–4 hours through normal meals. The body uses what's eaten throughout the day, not what's slammed into a 60-minute window after training. Eat the next normal balanced meal within a few hours of training. That's enough.



The Supplement Question — Why It's Not the Answer

For adolescent athletes, supplements are rarely needed and often inappropriate.

  • Protein powder — almost always unnecessary if the diet is balanced. Adolescents meet their protein needs through food.

  • Pre-workouts — dangerous. Caffeine doses of 150–300mg per serving far exceed safe limits for under-18s.

  • Energy drinks — not the same as sports drinks. The caffeine + sugar combination is linked to cardiovascular risk in adolescents and has no place in youth sport.

  • Creatine — research increasingly shows it's safe for adolescents, but it's not first-line. Foundation comes first.

  • Fat burners and "test boosters" — zero safety data for adolescents and real potential for harm. Avoid entirely.

  • A multivitamin can be reasonable insurance, but it's not a substitute for varied, balanced food. And it's worth knowing that the global supplement industry is loosely regulated — contamination with banned substances and heavy metals is genuinely common, which makes it a particularly poor bet for young athletes.



Red Flags to Watch For

  • Plateau or decline in performance despite consistent training

  • Frequent injuries, slow healing

  • Constant fatigue, poor sleep

  • Loss of menstruation in girls — immediate medical concern

  • Significant unexplained weight loss

  • Skipping meals around training

  • Obsession with body image or food restriction


Any combination of these warrants a conversation — first with the athlete, then with a sports nutritionist or paediatrician.



Fueletics Perspective on Young Athlete Nutrition

Adolescence is the most important nutrition window in an athlete's life. It is also one of the most under-served by current sports nutrition advice — which is mostly built for adults and rarely accounts for Indian food, Indian climate, or Indian household reality.


Parents and coaches play a much bigger role here than the athletes themselves. What's available at home and at the club determines what gets eaten.


The goal isn't supplements or rigid plans. It's foundation: enough food, enough water, the right nutrients, around training that supports growth — not just performance.


The good news is that most of the answers are already in Indian kitchens. Sattu, ragi, til, jaggery, nimbu paani, dal-chawal. Used properly, they cover most of an adolescent athlete's needs without buying anything new.


The work isn't finding new products. It's using what's already there, properly.



Research References

 
 

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