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Key findings: A March 2025 analytical report by supplement company Niagen Bioscience on 21 top-selling NAD supplements on Amazon revealed significant discrepancies between product claims and actual content: Only 24% met claims: Only 5 hard capsules contained NAD levels matching their labeled amounts
Some components, like lab work or weight loss medications, may be covered
Diabetes 48 , 415424 (2024)
Many people start their journey armed with general fitness apps, only to find themselves juggling reminders, notes and spreadsheets
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