Whey Protein Isolate vs Whey Protein - which should you take? The choice on whey protein or whey isolate is completely dependent on you, your goals and your preferences. The first thing that should be said is that, in terms of muscle growth, the benefits are similar. The difference between the two is that whey protein isolate has more protein per serving and, therefore, more grams of leucine per serving. The difference can be significant if you compare a whey protein concentrate with a low percentage of protein (25%) to a whey protein isolate. Best Budget Clear Protein Powder. Clear Whey Protein Isolate - Myprotein. With a wide variety of flavors available at about $1.30/serving, Myprotein's Clear Whey Isolate is a solid option for those looking for refreshing protein supplementation that won't break the bank. Contains 20 grams of whey protein isolate per serving. .

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