Whey protein may increase acne risk.

"This case-control study provides evidence of a positive association between whey protein consumption and acne risk." 

(Link to Research)

Whey and casein protein powder cause digestive issues.

Consumers report different digestive problems related to consumption of whey and casein protein such as bloating, diarrhea, and cramps.

(Link to reports)

Soy protein is similar with whey protein on strength gains and lean body mass. 

"The results of this meta-analysis indicate that soy protein supplementation produces similar gains in strength and LBM in response to RET as whey protein."

(Link to research)

Soy protein reduces cholesterol. 

"We found that the consumption of soy protein rather than animal protein significantly decreased serum concentrations of total cholesterol, LDL cholesterol, and triglycerides."

(Link to research)

Soy protein improves body and heart health at the same time. 

"These results indicate that soy-based protein foods can be effectively incorporated into an energy-restricted, high-protein diet for improving body weight, body composition and cardiometabolic health."

(Link to research)