Why Vegan Athletes May Benefit Most from Creatine

Why Vegan Athletes May Benefit Most from Creatine

Creatine is a supplement typically discussed in the context of bodybuilding and strength sports. But there is one group of people for whom creatine supplementation may be especially important: vegans and vegetarians. The reason lies in biochemistry and where creatine naturally comes from.

Natural Sources of Creatine

Creatine occurs naturally only in animal-derived foods — primarily:

• Red meat (~3–5g creatine per kg)
• Fish (~3–4.5g creatine per kg)
• Poultry (~3.4g creatine per kg)

Plant foods contain virtually no creatine. This means that on a plant-based diet, the body obtains creatine only from endogenous (internal) synthesis.

The body can synthesise creatine in the liver and kidneys from arginine, glycine, and methionine, but this amount covers only baseline needs — not the optimal level for an athlete.

Burke et al. 2003: Lower Stores

Burke et al. (2003) examined creatine stores in vegetarians versus omnivores and found a significant difference:

• Vegetarian muscle creatine concentration was 20–30% lower than in meat-eaters
• This difference is also reflected in blood creatine levels
• Vegans (who also exclude eggs and dairy) likely have even lower stores

This means a plant-based athlete operates with suboptimal creatine stores — like a car running on a half-empty fuel tank.

Greater Response to Supplementation

A fascinating paradox: precisely because vegans and vegetarians have lower creatine stores, they experience a greater effect from supplementation compared to omnivores.

The International Society of Sports Nutrition (ISSN) acknowledges in its position stand (Kreider et al., 2017) that vegetarians and vegans respond more strongly to creatine supplementation. This is logical — the lower the starting level, the more room for improvement.

Benton & Donohoe 2011: Cognitive Advantage

Benton & Donohoe (2011) studied creatine's effect on cognitive performance in vegetarians. The results were striking:

• Creatine supplementation improved memory performance significantly more in vegetarians than in omnivores
• The effect was especially strong in working memory tasks
• Researchers attributed this specifically to compensation for lower creatine stores

This aligns with the earlier study by Rae et al. (2003), where 45 vegetarians received 5g creatine daily for 6 weeks and showed improved working memory and reasoning speed.

All Creatine Is Vegan-Friendly

One important fact that eliminates a common concern: all commercial creatine monohydrate is synthetically produced.

Creatine monohydrate is manufactured through chemical synthesis from sarcosinate and cyanamide — this process involves no animal-derived raw materials. This applies to virtually all creatine products on the market.

So there is no need to seek a specifically "vegan" label on creatine — all creatine monohydrate is already plant-based.

Practical Guide for Vegan Athletes

Dosage

• 3–5g creatine monohydrate daily is the standard dose
• Since baseline stores are lower, 5g may be the more sensible choice for vegans
• A loading phase (20g/day for 5–7 days) is not necessary but accelerates store saturation

Best Combinations

Creatine pairs excellently with other plant-based supplements:

• Plant protein (pea, rice, hemp, soy protein) — with post-workout shake
• Vitamin B12 — another essential supplement for vegans
• Vitamin D — especially in Estonian climate
• Iron — particularly important for women

Optimising Absorption

• Take creatine with a meal — the insulin response aids absorption
• Post-workout intake with protein and carbohydrates is ideal
• Consistency matters more than timing — don't skip days

EFSA and Athletic Performance

The EFSA-approved claim applies regardless of dietary habits:

"Creatine increases physical performance in successive bursts of short-term, high-intensity exercise."

This claim is based on a dose of 3g daily and is especially relevant for athletes seeking to maximise their strength and power output.

Estonian Context

Veganism and plant-based eating are growing strongly in Estonia. Increasingly, Estonians are reducing animal food consumption for health, ethical, or environmental reasons. In this context, creatine supplementation is particularly relevant:

• Estonia's long winters mean less vitamin D and potentially less activity
• Combining plant-based eating with sports requires more careful nutrient planning
• Creatine is one of the easiest nutritional gaps to fill on a plant-based diet

Summary

• Creatine occurs naturally only in animal foods — plant-based eaters have no dietary source
• Burke et al. (2003): vegetarians have 20–30% lower muscle creatine stores
• Benton & Donohoe (2011): creatine's effect on memory was especially strong in vegetarians
• ISSN acknowledges vegetarians' stronger response to creatine
• All commercial creatine monohydrate is synthetic and vegan-friendly
• Standard dose: 3–5g daily, preferably 5g for vegans
• EFSA confirms: creatine increases physical performance in successive bursts of short-term, high-intensity exercise

References

• Burke, D.G. et al. (2003). Effect of creatine and weight training on muscle creatine and performance in vegetarians. Medicine & Science in Sports & Exercise, 35(11), 1946–1955.
• Kreider, R.B. et al. (2017). International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition, 14, 18.
• Benton, D. & Donohoe, R. (2011). The influence of creatine supplementation on the cognitive functioning of vegetarians and omnivores. British Journal of Nutrition, 105(7), 1100–1105.
• Rae, C. et al. (2003). Oral creatine monohydrate supplementation improves brain performance: a double-blind, placebo-controlled, cross-over trial. Proceedings of the Royal Society B, 270(1529), 2147–2150.
• EFSA Panel on Dietetic Products, Nutrition and Allergies (2011). Scientific Opinion on the substantiation of health claims related to creatine. EFSA Journal, 9(7), 2303.

Dietary supplements are not a substitute for a varied, balanced diet and healthy lifestyle.

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