What is the difference between casein and whey protein and which is better for you? If you are interested in adding muscle or improving your diet, you have probably considered a Casein or Whey based protein powder. But, do you know the difference between the two? Read more about Casein vs Whey and find out which is better for you. in Public bookmarkswith casein_proteincasein_vs_wheywhey_protein Note: If you are interested in adding muscle or improving your diet, you have probably considered a Casein or Whey based protein powder. But, do you know the difference between the two? Read more about Casein vs Whey and find out which is better for you.