As metabolic substrate in the TCA cycle, the acetyl groups could increment succinate and oxalacetate, increasing the anaplerosis and amino acid synthesis
doi:10.1146/annurev.nutr.24.012003.132418
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Harvard's David Sinclair and Washington University's Shin-ichiro Imai run human trials that focus on NMN instead of NAD+ [4]
If you start with low blood sugar or work out for a long time without refueling, your heart rate may increase as adrenaline kicks in
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