Phosphatidylserine for memory: the FDA's 2003 qualified claim, five trials at 100 to 600 mg, and why a 100 mg capsule sits below the doses most trials tested.
Life Extension
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Alpha-Lipoic Acid for Nerve Pain: What 1,242 Patients Showed
A 1,242-patient meta-analysis found real benefit for diabetic nerve pain at 600 mg a day — but this product's own label tops out at 480 mg. See the evidence.