DAA and Testosterone: D-Aspartic Acid Under Examination

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By Ali Kuoppala | Last reviewed Mon 24 September 2018 Medical Review by Gerardo Sison, PharmD  D-Aspartic acid – or DAA – which is a non-essential amino acid naturally found in various bodily tissues, hit the bodybuilding World like a storm few years ago. All it took for the supplement companies to make millions of…

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