Introduction

In recent years, interest in vegan proteins has grown exponentially, both among professional athletes and fitness enthusiasts. This trend is fuelled by a growing awareness of the benefits associated with a plant-based diet, not only for personal health but also for the environment.

In this article, we will examine the evolution of the vegan protein market, analyse the main sources of plant-based protein available to athletes, explore extraction methods and the quality of organic proteins compared to conventional ones, and discuss the choices of some world-renowned athletes who have adopted a vegan diet.

Growth of the vegan protein market

The plant-based protein market has experienced significant growth in recent years. In Italy, for example, sales of plant-based proteins increased by 16% in value and 14% in volume, reaching a turnover of €142 million in 2022.

This trend reflects a global shift towards sustainable diets rich in plant-based proteins, with more and more athletes turning to alternative sources of protein.

The Best Vegan Proteins for Athletes

For athletes, it is essential to ensure adequate protein intake to support muscle growth and recovery. Plant-based proteins offer several high-quality options, including:

Classic Proteins:

• Soy: One of the few complete plant proteins, containing all essential amino acids.
• Peas: Rich in BCAAs (branched-chain amino acids) and easily digestible.
• Hemp: A source of easily digestible protein and rich in omega-3.
• Brown rice: Often combined with other protein sources to achieve a complete amino acid profile.

Less Well-Known Plant Proteins:

• Sunflower seeds: Rich in protein and healthy fats, they contribute to cardiovascular health.
• Flax seeds: In addition to providing protein, they are an excellent source of omega-3 fatty acids, which are useful for reducing inflammation.
• Pumpkin seeds: They contain high-quality protein and are rich in magnesium, which is important for muscle function.

How Are Plant Proteins Extracted?

The extraction of proteins from plants involves the use of several advanced techniques to obtain a high-quality protein powder:

1. Alkaline extraction: A basic pH is used to solubilise the proteins, followed by acid precipitation to obtain the protein concentrate.
2. Ultrafiltration: This separates the proteins from other unwanted components such as fiber and starch, improving purity.
3. Enzymatic extraction: This uses specific enzymes to release the proteins from the plant matrices, better preserving their natural structure and improving bioavailability [Torrinomedica, 2023].

How Does the Extraction Method Affect Bioavailability?

The method used to extract plant proteins directly affects their bioavailability, i.e. the body’s ability to absorb and use them effectively. Alkaline extraction, although an effective technique for isolating proteins, can alter their structure, reducing digestibility. Enzymatic extraction, on the other hand, allows the natural structure of proteins to be better preserved, increasing their assimilation by the body [Torrinomedica, 2023].

In addition, the presence of anti-nutritional factors in plant proteins can reduce their bioavailability, but the use of advanced purification technologies such as fermentation or protein hydrolysis helps to improve the quality of the final product [Issalute, 2023].

Difference between Organic and Conventional Proteins

Plant proteins can differ in quality depending on the method of cultivation:

• Organic proteins: These come from crops grown without pesticides or chemical fertilisers and have a nutritional profile that is richer in antioxidants and micronutrients
• Conventional proteins: These may contain chemical residues and sometimes have a lower nutritional value than organic alternatives.

One study showed that organic crops have up to 29% more antioxidant activity than conventional crops, positively influencing the quality of the extracted proteins [Issalute, 2023].

Which world-famous athletes follow a vegan diet?

Numerous top athletes have adopted a vegan diet, attributing improvements in performance and recovery to this choice:

• Novak Djokovic: The Serbian tennis player, winner of numerous Grand Slam titles, attributes part of his success to a plant-based diet, which has improved his endurance and recovery times.
• Kendrick Farris: American Olympic weightlifter, he adopted a vegan diet in 2014 and subsequently set national records, proving that a plant-based diet can support strength sports.
• Fiona Oakes: British marathon runner and holder of several world records, she has been following a vegan diet for over 40 years, attributing her endurance and success to her plant-based choice.

Why Choose Vegan Protein for Sport?

The adoption of plant-based protein in sport is not just a passing fad, but a conscious choice supported by growing scientific evidence. With high-quality protein sources available and successful athletes leading the way, a well-planned vegan diet can meet the nutritional needs of athletes while contributing to a more sustainable lifestyle.