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Healthline recommends foods rich in vitamin B12, including beef, eggs, dairy, and fortified cereals
This compares to approximately 23% weight loss with diet and exercise alone
The different pathways offer complementary ways to study metabolic processes
Diet, supplements (e.g., niacin, NR), and exercise help, but may not suffice post-40 due to inefficiency and depletion.[18][19] Oral precursors like NMN increase NAD+ but bioavailability varies
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