Lectins are also reduced or removed by cooking, sprouting, or isolation processes 12-13. Plant lectins have been linked to anaemia, digestive issues, and protein and carbohydrate malabsorption and allergies 11-14. They can have a range of health effects, both positive and negative 9-10, and the actions of some plant lectins can be toxic and act as antinutrients, reducing the ability of the body to properly absorb protein, carbohydrate and essential minerals. Lectins are a type of protein found in both animals and plants, as well as in many foods. Saponins are also effectively removed by cooking, processing 5 and the isolation process of pea protein isolate. Some saponins can also promote benefits to health 5-8, but they can act as antinutrients – affecting the digestion of protein and reducing the uptake of minerals from the gut 7. Saponins are chemicals found in a wide variety of plants such as soybeans, chickpeas, peanuts and spinach 4.
Phytic acid can be reduced or eliminated by cooking, sprouting, and soaking 3.Īs outlined below in Table 1, pea protein isolate is practically free-from phytic acid. While phytic acid might aid some health conditions 2, it is also an antinutrient because it binds to proteins and essential minerals, inhibiting them from being absorbed. Because humans lack the phytase enzyme to break this compound down, we cannot absorb the phosphorus from phytic acid 1. Phytic acid stores phosphorus in grains and legumes. What can affect digestibility in real life? Antinutrients It is now commonly accepted that differences in protein sources are relatively minor and that the most important consideration is to consume (and absorb!) enough protein for optimal health and performance. Protein digestion and why it’s importantĭigestion refers to the process of breaking down substances (from food) to forms that can be absorbed into the body for use. Pea protein isolate is an increasingly common protein supplement due to its purported ease of digestion and high quality.īut how digestible is pea protein really?Ĭlinical Nutritionist & Researcher Cliff Harvey breaks down the science to explain.
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