💡 Quick Answer
Athletes should set macros in grams per kilogram of body weight, not as a fixed ratio: protein 1.4–2.0 g/kg a day, carbohydrate 3–12 g/kg depending on how hard and how long you train that day, and fat at no less than about 20% of calories. A 70 kg athlete might eat around 210 g of carbs on a rest day and 560 g on a long, hard training day, with protein staying close to 126 g on both.
- Carbs move with training load; protein stays roughly steady every day.
- Spread protein over 4–5 meals of about 0.25–0.4 g/kg (20–40 g) each.
- Fuel sessions longer than 60–90 minutes with 30–90 g of carbs per hour.
- Under-eating for weeks risks REDs (relative energy deficiency in sport), which hurts health and performance.
Training hard and guessing your food? UltraFit360 logs meals from a photo and shows protein, carbs and fat against your daily targets. Get UltraFit360 on the App Store or Google Play.
Macro tracking for athletes is a different job from macro tracking for fat loss. A dieter tracks to stay under a number. An athlete tracks to make sure there is enough fuel for the work: enough carbohydrate to train hard, enough protein to recover, and enough total energy to stay healthy across a season. The targets also change from day to day, because a rest day and a double session need very different amounts of food.
This guide gives you the evidence-based ranges, how they shift by sport and training load, a worked example for a 70 kg athlete, and a practical way to track without weighing every grain of rice forever. If you are new to macros in general, start with our macronutrients guide and how to track macros, then come back here.
Why Macro Tracking for Athletes Works Differently
Most macro advice is written for people trying to lose weight, and it usually gives a fixed split such as 40/30/30. That works poorly for athletes for three reasons:
- Training load changes daily. Carbohydrate is the main fuel for hard and long exercise, and the amount you need rises and falls with your sessions. A fixed percentage cannot follow that.
- Body weight matters more than total calories. Sports nutrition guidelines are written in grams per kilogram of body weight, so a 55 kg runner and a 95 kg rugby forward get targets that fit their size.
- Under-fuelling is a bigger risk than over-eating. Many athletes, especially in endurance, aesthetic and weight-class sports, eat too little without meaning to. That can show up as stalled progress, frequent illness, injuries and hormone problems.
The approach below follows the 2016 joint position statement on nutrition and athletic performance from the Academy of Nutrition and Dietetics, Dietitians of Canada and the American College of Sports Medicine (Thomas, Erdman and Burke, Medicine & Science in Sports & Exercise, 2016), the International Society of Sports Nutrition position stand on protein and exercise (Jäger et al., 2017) and the 2023 IOC consensus statement on REDs (Mountjoy et al., British Journal of Sports Medicine, 2023).
Athlete Macros at a Glance
| Macro | Daily target | How to use it |
|---|---|---|
| Protein | 1.4–2.0 g/kg | Keep it fairly steady every day. Go toward the top of the range when cutting weight or doing a lot of strength work. |
| Carbohydrate | 3–12 g/kg | Scale it to the day's training: low on rest days, high on long or very hard days. |
| Fat | At least ~20% of calories | Fill the remaining energy with fat. Very low fat diets are not recommended for athletes. |
Sources: protein range from the ISSN position stand (Jäger et al., 2017); carbohydrate bands and fat guidance from the 2016 ACSM/AND/DC joint position statement.
How Many Carbs Do Athletes Need?
Carbohydrate is the macro that should change the most from day to day. The 2016 joint position statement gives daily targets based on training load:
| Training load | Example | Carbs per kg per day | 70 kg athlete |
|---|---|---|---|
| Light | Low-intensity or skill-based work, rest days | 3–5 g/kg | 210–350 g |
| Moderate | About 1 hour of moderate exercise a day | 5–7 g/kg | 350–490 g |
| High | 1–3 hours of moderate to high-intensity training a day | 6–10 g/kg | 420–700 g |
| Very high | More than 4–5 hours a day of moderate to high-intensity work | 8–12 g/kg | 560–840 g |
Those numbers surprise many people, especially at the high end. A triathlete in a big training block may genuinely need 600+ g of carbohydrate a day. Trying to train like that on a low-carb diet usually means slower sessions and poorer recovery. On lighter days, though, there is no need to eat the same amount, which is where carb cycling ideas come from.
How Much Protein Do Athletes Need?
The ISSN position stand puts protein for most exercising people at 1.4–2.0 g/kg per day. Unlike carbs, protein does not need to swing much with training load. What matters more is spreading it out:
- Per meal: about 0.25 g/kg of high-quality protein, or roughly 20–40 g, per the ISSN. The 2016 joint statement suggests about 0.3 g/kg after exercise and across the day.
- Frequency: 4–5 protein feedings, every 3–4 hours, including one after training.
- When cutting weight: trained athletes in a calorie deficit may need more, and the ISSN notes intakes of 2.3–3.1 g/kg have been used to protect lean mass in that situation.
For a 70 kg athlete, 1.8 g/kg works out to about 126 g a day, or four to five meals of 25–35 g. Use the free protein calculator to get your own number.
Fat: Fill the Rest, but Don't Go Too Low
Once protein and carbs are set, fat makes up the remaining calories. The joint position statement recommends athletes avoid very low fat intakes, and a practical floor is about 20% of total calories. Fat supplies essential fatty acids and helps you absorb vitamins A, D, E and K, and very low fat diets make it hard to eat enough total energy on big training days. Most athletes land somewhere between 0.8 and 1.2 g/kg.
Macro Targets by Sport
The table below turns the ranges above into practical starting points for common sport types. These are not official sport-specific guidelines; they are ranges built from the position statements, and your coach or sports dietitian may adjust them for your season, position and goals.
| Sport type | Carbs (g/kg/day) | Protein (g/kg/day) | Fat | Notes |
|---|---|---|---|---|
| Endurance (running, cycling, triathlon, rowing) | 5–10, up to 12 in heavy blocks | 1.4–1.8 | 20–30% of calories | Carbs track weekly volume closely. Fuel long sessions during exercise. |
| Team sport (football, cricket, hockey, basketball) | 4–7 | 1.4–1.8 | 25–30% | Higher on match and double-session days, lower on recovery days. |
| Strength and power (powerlifting, weightlifting, sprinting) | 3–6 | 1.6–2.0 | 25–35% | Training is shorter, so carb needs are lower. Protein timing matters more. |
| Combat and weight-class (boxing, wrestling, judo) | 3–7, periodised | 1.8–2.2, higher when cutting | At least 20% | Avoid long, deep deficits and extreme cuts; work with a professional before weigh-ins. |
| Hybrid (HYROX, CrossFit, functional fitness) | 5–8 | 1.6–2.0 | 20–30% | Mixed strength and conditioning burns a lot of glycogen. |
Worked Example: Macro Tracking for a 70 kg Athlete
Here is how one 70 kg athlete's targets change across a training week. Protein stays at 1.8 g/kg (126 g), carbs follow training load, and fat stays at or above 20% of calories.
| Day type | Carbs | Protein | Fat | Total |
|---|---|---|---|---|
| Rest day | 3 g/kg = 210 g (840 kcal) | 126 g (504 kcal) | 70 g (630 kcal), 32% | ~1,975 kcal |
| Easy day (about 1 hour moderate) | 5 g/kg = 350 g (1,400 kcal) | 126 g (504 kcal) | 70 g (630 kcal), 25% | ~2,535 kcal |
| Hard day (2–3 hours or a double session) | 8 g/kg = 560 g (2,240 kcal) | 126 g (504 kcal) | 80 g (720 kcal), 21% | ~3,465 kcal |
Calculated with 4 kcal per gram of carbohydrate and protein and 9 kcal per gram of fat. Totals are rounded.
The gap between the rest day and the hard day is almost 1,500 kcal, and nearly all of it is carbohydrate. That is the core idea of fuelling for the work required: you don't eat the same thing every day, you eat for the day you have.
Carb Timing Around Training
Daily totals matter most, but timing helps you train and recover better on hard days. The 2016 joint position statement suggests:
| When | Carbohydrate | Indian food example (70 kg) |
|---|---|---|
| Before (1–4 hours) | 1–4 g/kg | 2 katoris of rice with dal 3 hours before (about 100 g carbs), or poha with a banana 2 hours before |
| During (sessions over 60–90 min) | 30–60 g/hour for 1–2.5 hours; up to 90 g/hour for longer events | Sports drink, bananas, dates, or chikki |
| After (quick recovery needed) | 1–1.2 g/kg per hour for the first 4 hours, plus protein | Curd rice with paneer, or rotis with dal and eggs |
Recovery carbs matter most when you train again within about 8 hours. If your next session is tomorrow, a normal meal with carbs and protein within a couple of hours is enough.
How to Do Macro Tracking for Athletes in Real Life
Few athletes can weigh every meal for a whole season, and they don't need to. A practical system:
- Calibrate for 2–3 weeks. Weigh and log everything, including oil and ghee, so you learn what 50 g of carbs or 30 g of protein looks like on your plate.
- Build day-type templates. Write one sample day each for rest, easy and hard days. Then just pick the template that matches tomorrow's session.
- Track by exception. After calibration, log only the protein feedings and carbs on hard days, and do a fully tracked week every month or two.
- Use photo logging. Snapping a photo of each meal is much faster than typing every ingredient, which makes it realistic during a heavy training block.
- Check outcomes, not just numbers. Body weight trend, training quality, energy, sleep and (for women) a regular menstrual cycle tell you if your intake is right.
Our guides to macro tracking in real life and meal prep for macro tracking have more shortcuts.
Macros in common Indian athlete foods
| Food | Serving | Calories | Carbs | Protein |
|---|---|---|---|---|
| Cooked white rice | 1 katori (150 g) | ~195 kcal | ~42 g | ~4 g |
| Chapati, no ghee | 1 medium (40 g) | ~95–100 kcal | ~19 g | ~3 g |
| Plain dal | 1 katori (150 g) | ~105 kcal | ~17 g | ~7 g |
| Kanda poha | 1 plate (180 g) | ~300 kcal | ~47 g | ~4.5 g |
| Banana | 1 medium (118 g) | ~105 kcal | ~27 g | ~1.3 g |
| Paneer, full fat | 100 g | ~300 kcal | ~1–3 g | ~19 g |
| Egg, boiled | 1 large | ~78 kcal | <1 g | ~6.3 g |
| Curd (dahi) | 1 katori (150 g) | ~90 kcal | ~6–7 g | ~5 g |
Values from our rice, chapati, dal, poha, paneer, egg and curd guides (IFCT 2017 and USDA FoodData Central); banana from USDA.
Notice how low in protein the carb staples are. A hard training day built only on rice, roti and poha can easily reach 500 g of carbs but stay well short of 126 g of protein. Add paneer, eggs, curd, dal, chicken, soya or a scoop of whey to each meal to close the gap.
Warning Signs You Are Under-Fuelling (REDs)
The 2023 IOC consensus statement describes Relative Energy Deficiency in Sport (REDs) as the health and performance problems caused by low energy availability: not eating enough to cover both training and basic body functions. Short, mild dips are usually harmless, but problems build when low energy availability lasts too long or is too severe. Watch for:
- Performance that stalls or drops despite consistent training
- Frequent illness, slow-healing injuries or stress fractures
- Irregular or missing periods in women, low libido in men
- Constant fatigue, poor sleep, irritability or low mood
- Steady weight loss you are not trying for
If several of these apply, raise your intake (usually carbs first) and see a sports doctor or dietitian. Do not try to push through it.
When Athletes Should Not Track Macros
Macro tracking is a tool, not a requirement. Skip detailed tracking, or only do it with professional support, if you have a history of disordered eating, if tracking makes you anxious about food, or if you are a teenage athlete. For young athletes, focus on regular meals, a carb and protein source at every meal and snacks around training instead of numbers. Our macro guide for teenage athletes covers this in more detail.
Macro Tracking by Sport
For sport-specific examples, see our macro tracking guides for:
To set your starting calories, use the free calorie and macro calculator.
Frequently Asked Questions
How many carbs do athletes need per day?
It depends on training load: about 3–5 g/kg on light days, 5–7 g/kg for around an hour of moderate exercise, 6–10 g/kg for 1–3 hours of hard training and 8–12 g/kg for very high loads of 4–5 hours or more. A 70 kg athlete therefore needs roughly 210–840 g a day.
How much protein do athletes need?
Most athletes do well on 1.4–2.0 g/kg of body weight a day, spread across 4–5 meals of about 20–40 g (roughly 0.25–0.4 g/kg). Trained athletes cutting weight may go higher.
What is the best macro ratio for athletes?
Athletes are better off setting macros in grams per kilogram than using a fixed ratio. As a rough guide, carbs often make up 45–65% of calories, protein 15–25% and fat 20–35%, but the split should change with training load.
Should athletes track macros every day?
Not usually. Track carefully for 2–3 weeks to learn portion sizes, build rest, easy and hard day templates, and then do a fully tracked week every month or two to check you are on target.
How much fat should athletes eat?
Keep fat at about 20% of calories or more. For most athletes that is around 0.8–1.2 g/kg a day. Very low fat diets make it hard to eat enough energy and absorb fat-soluble vitamins.
What is REDs in athletes?
REDs stands for Relative Energy Deficiency in Sport. It describes the health and performance problems, such as hormone disruption, bone stress injuries and poor recovery, that come from eating too little energy for the amount of training over time.
Can vegetarian Indian athletes hit their macro targets?
Yes. Rice, roti, poha and fruit easily cover carbs. For protein, add paneer, dal, curd or hung curd, soya chunks, milk and, if needed, a whey or plant protein shake at each meal to reach 1.4–2.0 g/kg.
Set your daily targets with the free calorie and macro calculator, then log meals by photo in UltraFit360 to see your carbs and protein for every training day.
Fuel Every Training Day Without Guesswork
UltraFit360 logs meals from a photo, tracks your workouts and shows protein, carbs and fat against your targets.