A 2019 study found that plant protein has similar benefits to whey protein. The two types of protein promote similar benefits for muscle strength, muscle growth, performance, and body composition. They also contain similar amounts of protein.
However, whey protein contains lactose, which makes it unsuitable for people with lactose intolerance.
Plant protein is suitable for vegans and those with lactose intolerance, so it may be a better option for some. Those with soy allergies may wish to avoid some plant-based protein powders.
Additionally, a 2020 review suggests that people should add more plant protein to their diet to reduce the risk of cardiovascular disease.