Herbalism Articles: Traditional Practice, Primary Research

I'm Ivy Ham, a certified clinical herbalist. Every article in this library combines traditional practice from Western herbalism, Ayurveda, and Traditional Chinese Medicine with primary research you can check for yourself.

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What Is NAC Made From? Human Hair, Feathers, and Better Options

Most NAC supplements start as keratin waste from barbershop floors, duck feathers, and hog bristles, and the label will not tell you which. Here is what NAC is, where the evidence is strong, why some researchers argue against cysteine supplementation, and how to buy fermentation-derived NAC if you still want it.

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Best Raw Dog Food Brands: Whole Prey Model Rankings by Type

Frozen raw is the gold standard for dog nutrition, but not every brand gets the prey model right. Here are the best legume-free options at every price and convenience level, ranked from best to acceptable, plus the toppers and DIY recipe I use for my own dogs.

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Avocado Oil Fraud: Lab Testing Finds Most Products Adulterated

New UC Davis lab testing found nearly 9 in 10 processed foods labeled with avocado oil contain undisclosed cheaper oils, including the seed oils buyers pay a premium to avoid. Here's what the study found, why olive oil has faced the same fraud for decades, and the case for cooking fats that cannot be counterfeited.

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