In practice it is sold domestically only as an unregulated "research chemical" labeled not for human consumption, meaning purity, sterility, and labeled concentration are not verified by any regulatory body
Hung HC, Li LC, Guh JH, Kung FL, Hsu LC
Human Chorionic Gonadotropin (HCG) is a naturally occurring glycoprotein hormone supplied as a research-grade standard for qualified laboratory research use
See our complete guide on how long peptides take to work for detailed timelines
A variety of factors can put someone at risk for a nutrient deficiency, including: Inadequate diet Increased nutrient demands due to pregnancy, breastfeeding, and menstruation Decreased nutrient absorption from GI conditions like celiac and Crohn's disease Genetic mutations (like the MTHFR polymorphism) Lower bioavailability of some nutrients (e.g., zinc and iron) from plant versus animal sources Decreased synthesis of vitamin D from sunlight among individuals with dark-colored skin Common medications that impact nutrient absorption, metabolism, and excretion Aging, which can trigger changes (such as decreased stomach acid) that decrease vitamin D and B12 absorption Now let's explore seven common nutrient deficiencies that can impact metabolic health and the blood tests that check for these deficiencies