Body composition: nootropics and compounds | sci-wiki

Resveratrol

Resveratrol is a stilbenoid polyphenol produced by several plants as a defensive compound, or phytoalexin, in response to injury or infection. It occurs in the skins of grapes, in red wine, in peanuts, and in berries, and is extracted commercially from Japanese knotweed for use in supplements. It became widely known through research linking it to sirtuin enzymes and the so-called French paradox; in animal studies, activation of the SIRT1 and AMPK pathways induced mitochondrial biogenesis, increased running endurance, and protected against diet-induced metabolic disease. Its relevance in people remains uncertain, as oral bioavailability is very low and at least one trial found that it blunted the cardiovascular benefits of exercise training in older men.

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Supplement

Dihydroberberine

Dihydroberberine (DHB) is a reduced, or hydrogenated, form of berberine; basically the same molecule with two extra hydrogen atoms tacked on. Once it hits the gut it gets converted right back to berberine, so you end up with all the familiar berberine effects (blood sugar control, better lipids, AMPK activation) but from a much smaller dose. The whole reason DHB exists is absorption. Plain berberine is notoriously hard to get into the bloodstream, so DHB is the clever workaround. Think of it as the same engine with a better fuel line; nothing new downstream, just far more of it actually reaching your cells. People reach for it for the same goals as berberine: steadier blood sugar, improved insulin sensitivity, healthier cholesterol and triglycerides, and that "exercise in a pill" AMPK effect on the cell's energy machinery.

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Peptide

HGH Fragment 176-191

HGH Fragment 176-191 is the C-terminal lipolytic region of human growth hormone, isolated to keep the fat-burning action while shedding the hormone's growth and blood-sugar effects [1][2]. In obese animal models this fragment, developed clinically as AOD9604, reduces body weight and body fat, boosts fat oxidation, and stimulates lipolysis without raising blood glucose or acting through the growth hormone receptor [1][2][3]. It is this clean separation of fat metabolism from classic GH signaling that has made the fragment a focused research tool for obesity [3][4].

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Growth Hormone

MK-777

MK-777, also styled Acetamoren, is marketed as an orally active growth hormone secretagogue in the same putative family as the well-characterized Ibutamoren (MK-677), and is presented as a ghrelin receptor agonist intended to amplify natural growth hormone and IGF-1 output. No published scientific record specific to MK-777 could be identified, so it is best regarded as an experimental compound whose rationale rests entirely on the biology of the growth hormone secretagogue class rather than on any direct evidence. For that class, non-peptide secretagogues acting at the growth hormone secretagogue receptor can restore youthful pulsatile growth hormone secretion and raise IGF-1, as demonstrated for MK-677. The citations here are provided as class-level context and do not characterize MK-777 itself; independent verification of its identity, potency, and safety is lacking.

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