Members-only supplement profiles: vitamins, minerals and other well-studied nutrients.
Vitamin B12 keeps your blood and nerves working, and it's one of the few vitamins your body can quietly run short on for years without your knowing. Here's who tends to run low, which foods and forms cover your needs, what "B12 for energy" really means, and the common medicines that drain it.
Vitamin C is the vitamin most people reach for at the first sniffle. Here's what it actually does in your body, which foods cover your needs, what the cold research really shows, and when "more" stops helping.
Quercetin is the most common flavonoid in the human diet, the yellow pigment behind onion skins and apple peels. Here's how naturopaths use it, the traditional herbs that are rich in it, and what the research shows.
Fish oil carries EPA and DHA, the long-chain omega-3 fats found in oily fish. Here's how folk medicine and naturopaths have used it, from cod liver oil for "aches and pains" to heart and brain support, and what the big trials found.
Zinc is a trace mineral your body uses in hundreds of enzymes, from immune cells to skin repair. Here's how traditional medicine and naturopaths use it, what the research shows, and why more isn't better.
A hundred years ago, doctors found that cod liver oil and sunshine could straighten the bowed legs of children with rickets. Twenty years later a dentist found a mysterious "Activator X" in spring butter. Here's why people now take vitamin D3 and K2 together, what the studies actually show, and the one medicine that makes K2 a serious matter.
In 1618 an English farmer found that cattle on Epsom Common wouldn't drink from a bitter pool. The salt left behind became one of the best-known home remedies of the next 350 years. Here's how people use magnesium today for sleep, muscles, headaches and regularity, what the studies found, and the safety limits that matter.
Berberine is the bright-yellow compound behind some of the oldest bitter remedies in Ayurveda and Chinese medicine, from Indian barberry to Chinese goldthread. Today it is one of the most-studied plant compounds for metabolic health, and one of the most interaction-prone, so it is worth reading the safety section first.
Glutathione is the body's own main antioxidant, and detoxers take it as a supplement to back up the liver's natural clean-up work. Members get the full entry: what the small trials found about whether swallowed glutathione even gets absorbed, typical amounts, and the safety points to know first.
NAC (N-acetylcysteine) is a form of the amino acid cysteine that the body uses to make glutathione, its main built-in antioxidant. Members get the full entry: where the research is strong (and where it isn't), typical amounts, and the drug interactions every NAC user should know.
