Betaine is an all round beneficial amino acid for ourbodies – it is great for the brain, muscles, energy levels, andhelps the liver as well. And yes, it is good for one's heart as well.How beneficial will the protein product be with it is a differentquestion, as it will depend on the amounts of betaine found in them.A medical dosage is 500-2000 mgs per day for those with betainedeficiency, so look for something that will have like 200 mgs fortherapeutic purposes.