Calculating Macros for Teenagers and High School Athletes

1 month, 4 weeks ago Calculating Macros & Calories
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HighSchoolHero Guest
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Apr 01, 2026 16:17

I am 16 years old and I play football and track. I want to build some muscle this off season so I started looking into macros. My parents think I am too young to be worried about this but I want to be the best athlete I can be.

How many calories should a growing teenager be eating? I am very active so I imagine my TDEE is quite high. I do not want to stunt my growth by being in a deficit but I also do not want to get slow and out of shape.

Are there any special considerations for someone my age? I am in the US and I have access to a good gym and decent food at home. I just need some guidance on the right numbers to aim for so I can perform my best next season.

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IronWill Guest
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Apr 01, 2026 16:37

Hey HighSchoolHero, it is great that you are taking initiative with your nutrition! Understanding macros is a powerful tool for any athlete, regardless of age. Just make sure you are doing it in a healthy, sustainable way and focusing on nutrient-dense foods.

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GymRatUK Guest Apr 01, 2026 19:34

@IronWill, that is a really good point about sustainability. Too many teens jump into fad diets that are not healthy or effective long-term. Focusing on whole foods and consistent intake is more important than perfect macro ratios, especially when starting out.

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A4tech
A4tech Registered User
76 posts
Apr 01, 2026 19:17

I agree completely. While your parents mean well, learning about nutrition at 16 is a huge advantage for your athletic career and general health. The key is to avoid extreme diets and focus on fueling your body properly for performance and growth.

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FitTeenCanada Guest Apr 01, 2026 23:01

@A4tech, I could not agree more. It is not about restricting, it is about optimizing. When you are active in football and track, your body needs plenty of energy. Macros help ensure you get the right kind of energy.

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CoachCelestine
CoachCelestine Registered User
138 posts
Apr 01, 2026 20:07

For HighSchoolHero, a good starting point is usually to calculate your Basal Metabolic Rate (BMR) and then factor in your activity level to get your Total Daily Energy Expenditure (TDEE). From there, you can adjust your macros. Protein should be a priority for muscle building.

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MuscleMama Guest Apr 02, 2026 05:27

@CoachCelestine, what protein intake would you recommend as a starting point for someone like HighSchoolHero? Is it still around 0.8-1g per pound of body weight, or should it be higher for a growing teen athlete?

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Alexandoy
Alexandoy Registered User
79 posts
Apr 02, 2026 05:10

Does anyone have good resources for calculating TDEE specifically for active teenagers? I find many calculators are geared towards adults or less active individuals, and I am not sure how much to trust them for a growing athlete.

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BeastModeJr Guest Apr 03, 2026 13:58

@Alexandoy, I use the Mifflin-St Jeor equation for BMR and then apply an activity multiplier. For a highly active teen, I would start with a multiplier around 1.7-1.9 and adjust based on progress. Always start a bit lower and increase if needed.

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PumpChaser
PumpChaser Registered User
91 posts
Apr 02, 2026 15:03

I would definitely lean towards the higher end for protein for a teen athlete aiming to build muscle. 1g per pound of bodyweight is a good target. Also, do not forget healthy fats for hormone production and overall health.

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CaliLifter Guest Apr 03, 2026 01:44

@PumpChaser, that is what I figured. My son is a similar age and activity level, and we have found success with 1g/lb. Getting enough protein can be a challenge with school and activities, but shakes and lean meats help a lot.

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Droz
Droz Registered User
122 posts
Apr 03, 2026 05:12

Carbohydrates are crucial too, especially with football and track. Do not be afraid of carbs! They are your primary energy source for high-intensity activities. Focus on complex carbs like oats, rice, and whole grains.

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CanuckGains Guest Apr 04, 2026 22:47

@Droz, absolutely! Carbs get such a bad rap sometimes, but for an athlete, they are non-negotiable. Fueling before and after practices is key. Simple carbs post-workout can also help with recovery and glycogen replenishment.

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Jayne_Scott
Jayne_Scott Registered User
77 posts
Apr 03, 2026 20:43

It is also worth noting that growth spurts can affect calorie and macro needs significantly. What works for a few months might need adjustment. Listen to your body and how you feel during training.

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UK
UKStrength Guest Apr 03, 2026 21:28

@JayneScott, that is a super important point! I had not even thought about that. My nephew is 15 and he seems to be constantly hungry, even when eating a lot. Probably a growth spurt combined with sports. Thanks for the reminder.

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Milligan
Milligan Registered User
39 posts
Apr 04, 2026 21:56

HighSchoolHero, do not overthink it to the point of stress. Consistency with whole foods, enough protein, and ample carbs for energy will get you 90% of the way there. Tracking can be helpful, but sometimes it can become obsessive.

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PrinceVegeta
PrinceVegeta Registered User
46 posts
Apr 04, 2026 23:16

Regarding your parents, maybe show them some reputable sources or articles that support proper nutrition for young athletes. Frame it as performance enhancement and health, not just

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MidwestMike Guest
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Apr 05, 2026 12:08

I completely agree with the advice to focus on nutrient-dense foods. Calorie quality matters a lot, especially for growing bodies. A burger and fries hit your macros differently than chicken, rice, and veggies, even if the numbers are similar.

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RockyBuilder
RockyBuilder Registered User
70 posts
Apr 05, 2026 19:08

@MidwestMike, that is a fantastic point. This is where the

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EastCoastLift Guest
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Apr 05, 2026 21:39

For a teen athlete, hydration is just as important as macros. Make sure you are drinking enough water throughout the day, not just during workouts. Electrolytes can also be beneficial during intense training sessions.

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AnimalLifter
AnimalLifter Registered User
126 posts
Apr 06, 2026 00:42

@EastCoastLift, you nailed it! Hydration is often overlooked when people focus solely on macros. Dehydration can severely impact performance and recovery, making all the macro-tracking efforts less effective.

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PowerPump Guest
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Apr 06, 2026 01:31

Remember to get enough sleep too! Muscle growth and recovery happen during sleep. All the training and perfect macros will not give you optimal results if you are not getting 8-10 hours of quality sleep as a teenager.

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jimmywells1988
jimmywells1988 Registered User
85 posts
Apr 06, 2026 15:43

@PowerPump, absolutely! Sleep, nutrition, and training form the holy trinity of athletic development. You cannot neglect one and expect peak performance from the others. Especially for a growing teenager, sleep is paramount.

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