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.
Pick a topic below to get started.
Synthetic Fragrance is the New Second-Hand Smoke
Did you know that exposure to synthetic fragrance is similarly damaging to our health as being exposed to second-hand smoke? It’s true! Volatile Organic Compounds (VOCs) are incredibly damaging to sensitive individuals, and even are emitted by essential oils. Learn about the health risks here!
Why I Avoid Delta-8 THC: What It Is and the 2026 Federal Ban
Delta-8 is not a natural plant medicine. Independent testing found undisclosed impurities in commercial products, and a law signed in November 2025 removes most of them from shelves by late 2026. Here is what changed and why I avoided these products from the start.
Raw Carrot Salad for Hormone Balance: Why Ray Peat Recommended It
Discover how the raw carrot salad, popularized by Dr. Ray Peat’s bioenergetic diet, can help support hormone balance, reduce estrogen dominance, and improve digestion. Backed by its unique fibers and anti-inflammatory benefits, this simple recipe is a powerful tool for gut, liver, and thyroid health.
Microplastics & Chemicals in Clothing
Plastic clothing, made from petroleum-based materials like polyester and nylon, sheds harmful microplastics and chemicals like PFAS, which infiltrate our environment and bodies. Learn how these synthetic fabrics impact our health, and discover safer alternatives in natural fibers to reduce exposure to microplastics and harmful chemicals.
Is Red Meat Healthy? Here’s What “The Science” Says
Explore the differences between grass-fed and conventional red meat, and examine the research that challenges the common view of red meat as unhealthy. This article highlights the nutritional benefits of pasture-raised beef and addresses the flaws in studies that group it with processed meat.
What Causes Insulin Resistance? Diet, Thyroid, Stress, and the Herbs With Evidence
Insulin resistance builds from more than diet. Here is what the trials show about sleep, sitting, stress hormones, thyroid, and medications, the food-order method that cut post-meal glucose by a third, and an honest evidence ranking of berberine, gymnema, cinnamon, bitter melon, and kutki.
Acne, the Skin Barrier, and Gut Health: An Herbalist's Approach
What the research says about acne, the skin barrier, and the gut, plus the food-first changes and simple unscented routine I use after years of severe acne.
Do You Need a Certification to Be an Herbalist?
You don’t need a certification to be an herbalist — in fact, the title is unregulated and based more on experience than credentials. This article explores why self-taught herbalists can be just as skilled as certified ones, and how institutional bias plays a role in who gets to be considered “official.”
Herbs for Seasonal Allergies: What the Research Shows
Butterbur, freeze-dried nettle, quercetin, and spirulina have the strongest research among natural options for seasonal allergies. Here is what the trials show and how to use each safely.
Potassium Electrolyte Drink: Best Ratio, Brands, DIY Recipe
Most electrolyte powders lead with sodium. I looked at what Ray Peat wrote about salt and potassium, compared three brands by ratio and ingredients, and rebuilt my potassium drink recipe with nettle and hibiscus instead of stevia and natural flavors.
How Hypothyroidism Could Secretly be Sabotaging your Weight Loss Goals, Hormones & Overall Wellness
Hidden hypothyroidism may be silently sabotaging your metabolism, making weight loss feel impossible while disrupting hormone balance and overall energy. This article explores how modern diets, stress, and environmental toxins contribute to thyroid dysfunction—and what you can do to restore optimal function naturally.
Fatty Liver Disease: Causes, Symptoms & 11 Tips for a Healthy Liver
Nearly one in three adults has fatty liver disease, most without symptoms. Here is what causes it, how to spot it, and 11 tips ranked by the strength of the evidence behind them.
Chaparral Herb (Larrea tridentata): Benefits on Record, Side Effects and the Creosote Bush
Chaparral (Larrea tridentata) is a resinous desert shrub with deep roots in Native and Mexican folk medicine, one of Earth's oldest living clones, and a 1990s liver injury record that every account of it should include.
Ray Peat Inspired Savory Beef and Gelatin Broth Bowl
Discover how gelatin, praised by Dr. Ray Peat for its stress-busting and anti-aging benefits, can transform your health with this simple broth recipe. Packed with glycine and easy to make, it’s a tasty way to support wellness inspired by Peat’s groundbreaking insights.
Plant Milk and Gut Health: What Is in the Carton
Most plant milks contain gums, emulsifiers, and added seed oils chosen for shelf life rather than nutrition. A look at what carrageenan, gellan gum, stevia extract, and enzyme-processed oat milk do in the gut, plus a ranked comparison of every common milk including raw dairy.
Dr. Ray Peat on Progesterone: The Hidden Hero of Heart Health
Ivy’s latest article examines Dr Ray Peat's perspective on the complex connection between hormones and heart health. The piece invites readers to consider how nutrition and subtle hormonal influences might shape overall cardiovascular wellness.
Herbs and Supplements for Memory: What the Trials Show
A clinical herbalist reviews the human trials behind the herbs and supplements sold for memory, names the manufacturer-funded ones, and covers the two habits with stronger data than any of them.
Endocrine Disruptors: Where They Hide and How to Cut Exposure
The chemicals with documented hormone activity, the products that carry them, and what I changed at home.
Ray Peat Gelatin Gummies Recipe (+ Pomegranate Variation)
These Ray Peat-inspired fruit juice gummies are a simple, protein-rich treat made with gelatin and fresh juice, offering a deliciously nourishing snack that's easy to customize.
Hyperbaric Oxygen Therapy for Long COVID & Healing Vaccine Injuries
Explore how Hyperbaric Oxygen Therapy (HBOT) may offer relief for lingering symptoms of Long COVID and adverse reactions to certain adjacent injections by promoting cellular repair, reducing inflammation, and supporting natural detoxification, with emerging research backing its potential benefits.
Start Here
Reader Favorites
Not sure where to begin? These in-depth guides are the most-read articles on the site.
Adaptogenic Herbs for Stress
Only seven botanicals truly meet the scientific criteria for adaptogens. Monographs on all seven, drawing on Ayurveda, TCM, and Western herbalism.
Ray Peat Approved Foods List
The complete guide to bioenergetic eating: fruits, dairy, proteins, fats, grey area foods, and a detailed FAQ.
Best Water Filters for Fluoride, Aluminum & PFAS
A 2026 comparison of reverse osmosis and gravity filters from someone who has used them all firsthand.
Clean Mineral Sunscreen Brands + DIY Zinc Sun Balm
The cleanest mineral sunscreens on the market, plus the non-nano zinc sun balm I make at home instead.
Natural Tick Repellent That Works
Plant-based repellents that hold up in studies, a DIY recipe, and the case against DEET and permethrin.
The Clean Coffee Buying Guide
Every brand that passes strict criteria: third-party tested, organic, mold-free, with a Swiss Water decaf option.