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NutritionAnswer

HOW MUCH PROTEIN DO CYCLISTS NEED?

By Anthony WalshRoadman CyclingUpdated

WHO THIS IS FOR

IS THIS YOU?

The cyclist who focuses on carbs and ignores protein

You eat plenty of pasta and gels but rarely think about protein — and recovery feels slower than it should.

The masters rider losing muscle

You are over 40 and noticing that power retention is getting harder despite consistent training.

THE ROADMAN VIEW

The Roadman view

The cycling world has a carbohydrate obsession, and rightly so — carbs are the fuel. But protein is the builder, and most serious amateurs under-eat it. The typical number Anthony sees from riders who track their food sits at 1.0–1.2g/kg, which is fine for a sedentary person and too low for someone doing four to six hours a week on the bike.

Dr Michael Ormsbee's research on nighttime protein changed Anthony's own habits. Taking 30–40g of casein or Greek yoghurt before sleep is not a bodybuilding trick — it is a recovery lever that the cycling world was slow to adopt. The protein extends the synthesis window overnight instead of letting your muscles sit in repair limbo while your stomach is empty for eight hours.

For masters athletes, the conversation is even more pointed. Muscle anabolic resistance after 40 means you need more protein per meal to get the same muscle-building response you got at 25. Eating the same amount you did a decade ago, distributed the same way, produces less adaptation. The fix is simple: more at each sitting, one more sitting per day, and a hit before sleep.

EXPERT EVIDENCE

WHAT THE EXPERTS SAY

PRACTICAL APPLICATION

DO THIS WEEK

  1. Calculate your daily target

    Multiply your bodyweight in kg by 1.8 as a starting point. A 75kg rider targets 135g/day. Divide across four meals — roughly 30–35g per sitting. Use a food diary for a week to see where you actually land; most riders are surprised how short they fall.

  2. Anchor each meal with a protein source

    Breakfast: eggs, Greek yoghurt, or cottage cheese. Lunch: chicken, fish, or legumes. Post-ride: a shake or high-protein snack. Dinner: a palm-sized serving of animal protein or equivalent plant sources. Each meal should deliver 25–40g.

  3. Add a bedtime protein hit on hard training days

    200g of Greek yoghurt, 150g of cottage cheese, or a casein shake before sleep delivers 30–40g of slow-release protein and extends the overnight repair window. This one change alone moves the needle for riders who currently eat nothing after dinner.

COMMON MISTAKES

WHAT CYCLISTS GET WRONG

  • MISTAKEHitting a 1.0g/kg protein target because it matches general health guidelines.

    FIXEndurance athletes need nearly twice the general recommendation. Double your target and track a few days to confirm you are hitting it.

  • MISTAKEEating most protein at dinner and little throughout the day.

    FIXMuscle protein synthesis is driven by individual meal doses, not daily total alone. Spread 25–40g across each of three to four meals.

  • MISTAKERelying on carb-heavy recovery foods with no protein component.

    FIXA banana and an energy bar after a ride covers carbohydrate but does nothing for muscle repair. Add a protein source — a shake, eggs, or Greek yoghurt — to every post-ride snack.

FAQ

FREQUENTLY ASKED QUESTIONS

Can I get enough protein as a plant-based cyclist?
Yes, but it requires more planning. Plant proteins are generally less complete and lower in leucine, the amino acid that most strongly triggers muscle protein synthesis. Aim for the upper end of the range — 2–2.4g/kg — and combine sources (legumes with grains, soy protein, tofu) to cover all essential amino acids.
Will eating more protein make me gain weight?
Protein has the highest satiety value of the macronutrients, so replacing some carbs or fat with protein often reduces overall calorie intake rather than increasing it. For cyclists trying to lose weight, higher protein intake while training hard helps preserve muscle during a calorie deficit.
Is whey protein better than food for cyclists?
Whey is a convenient, fast-digesting source that works well post-ride when appetite is low. For daily intake, whole food sources are equally effective and provide micronutrients that a shake does not. Use shakes to plug gaps, not as a replacement for meals.
How much protein is too much for a cyclist?
There is no strong evidence that intakes up to 3g/kg cause harm in healthy adults. Practically, the law of diminishing returns kicks in above 2.2g/kg for most cyclists. More protein above that threshold does not drive more adaptation — the extra calories are better spent on carbohydrate for fuel.
Does protein timing around rides matter?
Yes, but not as precisely as supplement marketing suggests. The most important windows are within 30–60 minutes post-exercise and before sleep. Getting protein at every meal across the day matters more than hitting an exact minute post-ride.
Do masters cyclists really need more protein than younger riders?
Research is clear: muscle protein synthesis becomes less efficient after 40, requiring a higher protein dose per meal to achieve the same response. Aim for 2.0–2.4g/kg and prioritise larger individual servings of 35–40g rather than the 20–25g that was sufficient at a younger age.

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