Plant-based diets — eating patterns that prioritize fruits, vegetables, grains, legumes and other non-animal foods — continue to gain traction among athletes looking to optimise performance, recovery and overall health. New research and reviews of scientific evidence suggest that these diets do not harm performance and may offer specific benefits for certain types of athletic activities.

What the Evidence Shows

A systematic review and meta-analysis published in the British Journal of Nutrition found that plant-based diets were associated with a moderate positive effect on aerobic performance — important for endurance sports — while having no significant impact on strength and power performance compared to omnivorous diets. Overall athletic performance did not decline, even though those following plant-based diets tended to have lower body mass index (BMI).

Other scientific reviews support this finding, noting that plant-based eating can supply abundant carbohydrates, antioxidants and phytochemicals that help fuel endurance activities and support recovery by reducing oxidative stress and inflammation. These nutrients also contribute to improved blood flow and metabolic health, which may help performance indirectly.

A recent meta-analysis of plant-based protein supplements showed that while they can enhance strength and endurance compared to low-protein diets, they may be less effective than some animal-derived proteins in building muscle when total protein intake is controlled. This highlights the importance of adequate protein planning for athletes on plant-based diets.

Why It Matters

These findings matter because they challenge a longstanding belief that animal-based protein is essential for athletic success. Plant-based diets can be nutritionally sufficient for many athletes, including competitive and endurance athletes, provided that energy and protein needs are met responsibly. Experts stress the importance of dietary planning — especially for athletes engaged in high-intensity training — to avoid nutrient shortfalls in protein, iron, vitamin B12 and other micronutrients often found in fewer quantities in plant foods.

Adopters of plant-based diets also cite health and environmental benefits, which align with broader trends in sports nutrition toward sustainable, anti-inflammatory eating patterns. As research continues, personalised nutrition strategies that integrate plant-based principles may become more common in athletic training programs.

Trend Impact

In 2026, plant-based diets are no longer seen as fringe or restrictive in the athletic community — they are part of a growing trend toward performance-oriented nutrition that emphasises recovery, cardiovascular health, and long-term well-being. Coaches, dietitians and athletes increasingly focus on macronutrient balance, protein quality and micronutrient adequacy rather than diet labels alone, showcasing a shift toward evidence-based, flexible dietary approaches.