Omega-3 Fish Oil
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.
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Zinc
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.
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Vitamin D3 + K2
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.
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Magnesium
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.
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Apple Cider Vinegar
People have used vinegar as a kitchen remedy for thousands of years, from Hippocrates' wound care to the honey-and-vinegar tonics of Persian medicine. Here's what tradition says, what the small modern studies found, and how to take it without hurting your throat.
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Berberine
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.
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Glutathione
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.
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NAC (N-Acetylcysteine)
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.
