About the Product
Marvelous Nutrition's Amputation is a multi-pathway thermogenic and fat burner in HPMC capsules, formulated with 13 active ingredients that target body fat through four simultaneous mechanisms: thermogenesis (increased caloric expenditure via core temperature), lipolysis (fat mobilization from adipocytes), anti-estrogenic and diuretic action (reduction of water retention and estrogen-influenced fat), and cognitive focus and energy to maintain training intensity during a calorie-restricted cutting phase. The formula includes classic thermogenics (caffeine, p-synephrine, EGCG from green tea, green coffee, capsaicin, ginger), complemented by differentiating ingredients: CLA (Conjugated Linoleic Acid) from safflower oil for body composition, Lion's Mane (Hericium erinaceus) for cognitive focus, and Inositol for fat metabolism and hormonal balance. Vegan (HPMC capsule).
Benefits
Multi-pathway thermogenesis: the core principle of Amputation:
Amputation acts on thermogenesis (increased metabolic heat production and caloric expenditure) through multiple converging mechanisms. Caffeine inhibits phosphodiesterase (PDE) and increases cAMP, activating hormone-sensitive lipase (HSL) in adipocytes and increasing caloric expenditure via the sympathetic nervous system. p-Synephrine (from Citrus aurantium 15:1) activates β3-adrenergic receptors in brown and white adipocytes, stimulating thermogenesis via UCP1 (uncoupling protein 1) in brown adipose tissue. EGCG from green tea inhibits catechol-O-methyltransferase (COMT), prolonging noradrenaline action and amplifying the adrenergic thermogenic signal. Capsaicin from cayenne pepper activates TRPV1 receptors with a reflex thermogenic effect via the sympathetic nervous system. Gingerol from ginger has a thermogenic effect via mechanisms similar to capsaicin (TRPV1 agonism and lipase activation). Green coffee (chlorogenic acid) inhibits hepatic glucose-6-phosphatase, reducing gluconeogenesis and forcing greater fatty acid oxidation as an alternative fuel.
CLA (Conjugated Linoleic Acid) from safflower oil: body composition and PPAR receptor modulation:
CLA (Conjugated Linoleic Acid) is a family of linoleic acid isomers naturally found in milk fat and ruminant meat, with the c9,t11 and t10,c12 isomers being the most biologically active. CLA from safflower oil (Carthamus tinctorius) is the most concentrated commercial plant source of CLA. CLA's mechanisms of action on body composition include: activation of PPAR-α receptors (agonism that increases β-oxidation of fatty acids in the liver and muscle), inhibition of lipoprotein lipase (LPL, the enzyme that allows the uptake of circulating triglycerides by adipocytes), and promotion of apoptosis of mature adipocytes. The meta-analysis by Whigham et al. (2007), published in the American Journal of Clinical Nutrition with data from 18 clinical trials, documented that CLA (average dose ~3.2g/day) reduced fat mass by ~0.05 kg/week vs. placebo. Powdered CLA from safflower oil is an unusual choice in capsule thermogenics, distinguishing Amputation from most conventional fat burners.
Lion's Mane (Hericium erinaceus, sporophore): the nootropic fungus for focus and neuroprotection:
Lion's Mane (Hericium erinaceus, sun mushroom) is a medicinal fungus (Basidiomycota) from traditional Chinese and Japanese medicine, with a growing body of evidence for nootropic and neuroprotective effects. Its main active compounds are hericenins and erinacins, which stimulate the synthesis of NGF (Nerve Growth Factor) and BDNF (Brain-Derived Neurotrophic Factor). NGF is essential for the growth, maintenance, and survival of cholinergic neurons in the cortex and hippocampus (the neurons most affected in Alzheimer's disease), and BDNF supports synaptic plasticity and hippocampal neurogenesis. In the context of Amputation as a thermogenic, Lion's Mane serves a specific purpose: during severe calorie-restricted cutting phases, cognition and focus are often compromised (the brain depends on glucose as its preferred fuel and suffers from calorie restriction), and Lion's Mane can mitigate this cognitive decline, maintaining focus and motivation to train intensely even in a caloric deficit. It is a completely different ingredient from what is usually found in thermogenics and positions Amputation as a fat burner with a nootropic component.
Inositol: hepatic fat metabolism, insulin signaling, and hormonal balance:
Inositol (myo-inositol) is a cyclohexane sugar alcohol that functions as a second messenger in multiple cellular signaling systems. In the context of Amputation, inositol is relevant in three areas: hepatic fat metabolism (inositol is a structural component of inositol phospholipids in hepatocyte membranes and contributes to fat transport from the liver — its deficiency causes hepatic steatosis in animal models), insulin signaling (myo-inositol is a precursor to IP3 — inositol triphosphate — which mediates the cellular response to insulin, improving insulin sensitivity), and hormonal balance (inositol has documented effects in polycystic ovary syndrome — PCOS — where it improves the hormonal profile, reduces androgens, and improves insulin sensitivity). For female athletes in a cutting phase, inositol is particularly relevant as a modulator of hormonal balance and insulin sensitivity.
L-Tyrosine: protection of the catecholaminergic axis during caloric deficit:
L-Tyrosine is the precursor to dopamine, noradrenaline, and adrenaline (the three catecholamines). During cutting phases with caloric restriction, catecholamine synthesis can be compromised due to lower availability of dietary tyrosine (a consequence of reduced protein and total caloric intake), resulting in fatigue, loss of motivation, reduced stress tolerance, and decreased sympathetic-adrenergic thermogenesis. L-Tyrosine supplementation replenishes the substrate for catecholamine synthesis, supporting thermogenesis, focus, and motivation during caloric deficit.
Willow bark extract 8:1: the natural anti-inflammatory for body recomposition:
As described in Power M.F, willow extract (Salix alba) contains salicin → salicylic acid, which has a moderate anti-inflammatory and vasodilator effect. In thermogenics, willow bark is often included for its ability to potentiate the effects of other thermogenic ingredients via anti-inflammatory mechanisms (which reduce resistance to fat loss in inflamed tissues) and vasodilatory mechanisms (which improve the delivery of oxygen and mobilized fatty acids to oxidative tissues). The 8:1 extract is a high concentration that ensures an active dose of salicin per capsule.
Chromium picolinate: the mineral cofactor for insulin sensitivity (shared with Recharge):
As detailed in Recharge, chromium picolinate improves the sensitivity of insulin receptors, supporting glucose metabolism and body composition. In a cutting context, greater insulin sensitivity means better nutrient partitioning (more glucose taken up by muscle, less stored as fat) and better carbohydrate management during refeed days.
Usage
Recommended dose: Take as indicated on the product label (dose not specified on the product page — check packaging). Take 30 minutes before training or before the first meal of the day. Start with the minimum dose to assess tolerance to caffeine and p-synephrine. Do not take after 3 PM to avoid impact on sleep. Do not combine with other caffeine-containing products on the same day.
