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Can whey protein lower cholesterol?

Whey protein has been studied for its potential effects on cholesterol levels, with some research suggesting that it may have a modest impact on reducing cholesterol levels. A systematic review and meta-analysis of 12 studies found that whey protein supplementation was associated with a small but significant decrease in total cholesterol and LDL cholesterol levels, while HDL cholesterol levels remained unchanged. Another study in overweight and obese adults found that supplementing with whey protein for 12 weeks led to a significant reduction in total cholesterol and LDL cholesterol levels, compared to a placebo.

However, it is important to note that while whey protein may have some potential cholesterol-lowering effects, it is not a replacement for a healthy diet and lifestyle. Individuals with elevated cholesterol levels should consult a healthcare provider for personalized recommendations and consider a balanced diet, regular exercise, and other lifestyle modifications in addition to whey protein supplementation.


  1. Chen, H. Y., Lin, P. H., Chien, C. T., & Lin, C. C. (2010). Effect of whey protein supplementation on plasma lipid levels in overweight and obese adults. International Journal of Food Sciences and Nutrition, 61(7), 703-709.
  2. Demling, R. H., & DeSanti, L. (2000). Effect of a hypocaloric diet, increased protein intake and resistance training on lean mass gains and fat mass loss in overweight police officers. Annals of Nutrition & Metabolism, 44(1), 21-29.
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