Rowing nutrition for heavy training and regatta racing

At a glance

• Energy demands: Very high from volume and muscle mass
• Race format: 2,000 m all-out, often several rounds
• Training: Water, erg and gym, often twice daily
• Health watch: Lightweight weight-making and RED-S risk

Endurance and power in one sport

Rowing is both an endurance and a power sport. A 2,000 m race demands near-maximal effort from start to finish, drawing on aerobic and anaerobic energy systems and almost the whole body's muscle mass. Many rowers are tall and muscular and train for long hours, so total energy and carbohydrate needs can be very large, particularly in heavyweight squads.

Training combines long steady sessions on the water or ergometer, high-intensity pieces, erg tests and strength work, frequently twice a day and often starting early to fit around light, water conditions, study or work. Winter head races are longer, processional time trials, while summer regattas involve heats, repechages, semi-finals and finals, sometimes more than one race in a day.

Lightweight rowing adds a weight limit, and some rowers who are not formally lightweight still feel pressure around weight during crew selection. Rapid weight loss and dehydration before weigh-ins carry health and performance risks, and chronic restriction raises the risk of RED-S. Our founder, Jenaed, is Lead Sports Dietitian at Cambridge University, supporting scholarship athletes in a demanding university sporting environment.

Nutrition priorities for rowers

Meet very high energy needs

Rowers training 1–3 h a day typically need 6–10 g/kg/day of carbohydrate, and heavy days beyond 4–5 h may need 8–12 g/kg/day. Bigger rowers often struggle to eat enough without a plan. [1]

Fuel early outings

Pre-dawn sessions on the water need a quick carbohydrate snack and a planned breakfast afterwards, so the second session of the day is not compromised.

Recover between sessions

When a gym or erg session follows an outing within hours, 1.0–1.2 g/kg/h of carbohydrate for the first 4 h after training supports glycogen recovery. [1]

Spread protein for strength

About 20–40 g of protein every 3–4 h supports strength and muscle adaptation across a rower's long training day. [2]

Approach lightweight safely

For lightweight rowers, we plan any weight change gradually and under supervision, with adequate fuelling as the priority. We do not support unsafe rapid weight loss or dehydration before weigh-ins. [4]

Consider evidence-based supplements

Caffeine, creatine, beta-alanine and sodium bicarbonate (0.2–0.4 g/kg) all have evidence in specific high-intensity contexts such as 2,000 m racing. We assess suitability and recommend batch-tested products only. [3]

Regatta-day fuelling

1. Day before: Keep carbohydrate intake high with familiar meals, and plan food around the next day's race times, which may include heats and finals.
2. Before racing: Eat a familiar carbohydrate-based meal a few hours before your race. If you use caffeine and have practised with it, 3–6 mg/kg about 60 min beforehand is an option. [3]
3. Between rounds: Between heats and finals, use easy-to-digest carbohydrate snacks and fluids, and rest out of the sun or the cold.
4. After racing: Have carbohydrate and about 0.3 g/kg protein, then a proper meal; if you race again the next day, keep carbohydrate intake high to restock glycogen. [1]

General guidance from sports nutrition consensus statements. Your practitioner will tailor amounts to you.

Rowers and their demands

Heavyweight (open-weight) rowers

Very high energy and carbohydrate needs, where eating enough around training is often the main challenge.

Lightweight rowers

Weight limits require careful, supervised planning that protects health, fuelling and bone health, with RED-S screening throughout.

Coxes

Lower training energy demands, but early starts, cold conditions and pressure around weight still deserve attention.

Masters and club rowers

Training around work makes early-morning fuelling and recovery between sessions the priorities.

What we help with

• Struggling to eat enough during heavy training blocks
• Making lightweight without crash dieting or dehydration
• Fuelling early outings and double sessions
• Low energy, illness or injury through winter training
• Regatta days with heats, repechages and finals
• Using caffeine or bicarbonate without gut upset

Ongoing support, not one-off sessions

We do not work with athletes on a one-off basis. Sports nutrition works best when it adapts to your training, so we recommend an initial consultation followed by at least three follow-ups.

Who you could work with

• Jenaed Ruddock, HCPC-registered Sports Dietitian (SENr)
• Beatriz Ribeiro, HCPC-registered Dietitian
• Melissa Bosch, Eating Disorder Nutrition Specialist
• Tom Hill, SENr Sports and Performance Nutritionist

Book your consultation

Book an initial consultation or book a free discovery call to talk it through first. All consultations are online.

Explore more

See all the sports we work with, our RED-S nutrition support, or meet the team.

Frequently asked questions

How much should a rower eat?

Rowers' needs vary widely with body size, crew role and training phase. As a guide, those training 1–3 h a day typically need 6–10 g/kg/day of carbohydrate and 1.2–2.0 g/kg/day of protein. We personalise this from your training programme.

Can you help me make lightweight safely?

Yes, with your health as the priority. We plan any change gradually, keep training fuelled and screen for RED-S. We do not support rapid weight loss or dehydration before weigh-ins, and if making the limit is not safe for you, we will tell you.

Is sodium bicarbonate useful for rowing?

Sodium bicarbonate at 0.2–0.4 g/kg is an evidence-based option for high-intensity efforts lasting a few minutes, such as a 2,000 m race or erg test. It often causes gut upset, so it must be trialled in training, and only batch-tested products such as Informed Sport should be used.

What should I eat before an erg test?

Treat it like a race: a familiar carbohydrate-based meal a few hours before, fluids, and any caffeine you have already practised with. We adjust the timing to when your test is scheduled.

Do you work with university rowers?

Yes. Jenaed is Lead Sports Dietitian at Cambridge University, and we support university and club rowers online. We do not work with athletes on a one-off basis; we recommend a minimum of three follow-up consultations after your initial consultation, so your plan can follow you from winter training into regatta season.

Do you support junior rowers?

These pages are for adult rowers. Junior rowers are supported through our paediatric team.

References

1. Thomas DT, Erdman KA, Burke LM. Position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine: Nutrition and Athletic Performance. J Acad Nutr Diet. 2016;116(3):501–528.
2. Jäger R, et al. International Society of Sports Nutrition Position Stand: protein and exercise. J Int Soc Sports Nutr. 2017;14:20.
3. Maughan RJ, et al. IOC consensus statement: dietary supplements and the high-performance athlete. Br J Sports Med. 2018;52(7):439–455.
4. Reale R, Slater G, Burke LM. Acute-weight-loss strategies for combat sports and applications to Olympic success. Int J Sports Physiol Perform. 2017;12(2):142–151.
5. Mountjoy M, et al. 2023 International Olympic Committee (IOC) consensus statement on Relative Energy Deficiency in Sport (REDs). Br J Sports Med. 2023;57(17):1073–1097.