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L-Tyrosine and Beta Alanine have Will Brink's endorsement as worthwhile supplements.

My question is: are these really necessary with protein supplementation as Tyrosine and Alanine will ultimately be derived from the protein in whey?

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Not at all. Getting your nutrients from food is a lot better than getting them isolated in supplements. Whey is about as close to food as you're going to get from a supplement. If there's an amino acid that you won't get from your food or from the whey, then it would make sense to take it as a separate supplement, but doubling up is just going to end up costing you more money without a matching benefit to show for it.

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