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The only meaningful human research we have been able to find for NMN (Beta Nicotinamide Mononucleotide) or other NAD boosters in 2023 has always used powder as the delivery method. This is what David Sinclair says he takes himself. Its important to know the exact dose you are putting into your body; even if these new products can deliver more, that's not necessarily a good thing. Let's look at them, one by one.
Capsules are used to hide the bad taste of many supplements, and that's fine. Unless they are used to hide poor quality ingredients that contain solvents or other impurities. For Nicotinamide Mononucleotide capsules, our advise is to open one and just taste it! Compare the contents to our pure fully enzymatic Nicotinamide Mononucleotide powders.
Tablets require binders and other ingredients; similar to capsules it can be hard to taste the original ingredient, and even harder to figure out how much of it you are actually getting.
David got in a spot of bother for commenting on sublingual use, as opposed to just taking the powders. In essence, he said that the evidence is based on powders and he's good with that. Even if sublingual and lipsomal products work better, then the uptake of Nicotinamide Mononucleotide in the body is unknown, and that's not always good. We can't find any evidence for this anyway in 2023. We believe its just marketing allowing companies to provide lower amounts of Nicotinamide Mononucleotide with the promise that its absorbed better. Many companies that promote this usually quote absorption of other supplements like green tea and this can just be confusing!