Evidence-Based Supplement & Herb Guides

GLP-1 Medications and Hormones: Appetite, Insulin, and Side Effects Explained

Learn how GLP-1 medications affect appetite, insulin, glucagon, weight, and hormone-related symptoms, plus the most common side effects, key risks, and how to use them more safely.

GLP-1 medications have changed the conversation around weight, blood sugar, and appetite because they work on systems people can actually feel: hunger, fullness, cravings,...

GLP-1 Medications and HRT: Oral Progesterone, Absorption, and What to Ask

GLP-1 medications and HRT can overlap in important ways, especially when oral progesterone is used for endometrial protection. Learn what delayed gastric emptying may mean for absorption, which drugs raise more concern, and what to ask your clinician.

As GLP-1 medications become more common in midlife care, a new practical question keeps coming up in menopause clinics: what happens when weight-loss or...

GLP-1 Medications and Thyroid Concerns: What Research Suggests and What to Ask

GLP-1 medications and thyroid concerns can be confusing. Learn what the boxed warning really means, what human research suggests, how levothyroxine may be affected, and which questions to ask before starting semaglutide or tirzepatide.

Few medication warnings create as much anxiety as the thyroid boxed warning attached to several GLP-1 medications. People hear “thyroid tumors” and understandably wonder...

GLP-1 Medications for PCOS: Weight Loss, Cycle Changes, and Fertility Questions

Learn how GLP-1 medications may affect PCOS weight loss, periods, ovulation, and fertility planning, including realistic results, common side effects, and what to ask before trying to conceive.

PCOS often affects more than one part of daily life at once. Weight may feel unusually hard to manage, hunger cues can seem out...

Gluten-Free for Hashimoto’s: Who Might Benefit and Nutrient Pitfalls to Avoid

Learn whether a gluten-free diet helps Hashimoto’s, who may benefit most, when it is unlikely to help, and which nutrient pitfalls to avoid before cutting out gluten.

Hashimoto’s thyroiditis inspires strong opinions about food, and gluten often sits at the center of the debate. Many people hear that cutting gluten will...

Glycine for Sleep and Stress Hormones: Benefits, Dosage, and Side Effects

Learn how glycine may support sleep, what it can and cannot do for cortisol and stress, the best bedtime dose, and key side effects to know.

Falling asleep is not just about being tired. It also depends on body temperature, nervous system tone, circadian timing, and the rhythm of stress...

Goiter Explained: Causes, Symptoms, and Treatment Options

Learn what a goiter is, why the thyroid enlarges, which symptoms matter, how doctors diagnose the cause, and the treatment options that may help.

A goiter is an enlarged thyroid gland, but that simple definition can hide many very different stories. For one person, it may be a...

Goitrogen Foods and Thyroid: Cruciferous Vegetables, Cooking, and What’s Myth

Goitrogen foods and thyroid health explained: learn how cruciferous vegetables affect the thyroid, why cooking matters, who should be cautious, and which common myths about kale, broccoli, and iodine get wrong.

The phrase “goitrogen foods” sounds more alarming than it usually needs to. Many people hear that broccoli, kale, cabbage, or cauliflower can “hurt the...

Graves’ Disease: Symptoms, Causes, and Treatment Overview

Learn the key symptoms, causes, diagnosis steps, and treatment options for Graves’ disease, including eye complications, pregnancy concerns, and long-term follow-up.

Graves’ disease is the most common cause of overactive thyroid in adults, but it is more than a thyroid problem alone. It is an...

Growth Hormone: What It Does and Symptoms of Too Much or Too Little

Learn what growth hormone does, how low or high levels affect children and adults, which symptoms matter most, how GH disorders are tested, and when treatment or specialist care is needed.

Growth hormone is often reduced to a childhood story about getting taller, but its real job is broader and more interesting than that. It...

Gynecomastia (Male Breast Tissue): Hormone Causes and When to Test

Learn what gynecomastia means, which hormone imbalances and medications can cause male breast tissue, when testing is worth doing, and which red flags need prompt medical evaluation.

A lump or fullness in the male chest can trigger fast, private worry. Some men assume it is just fat gain. Others fear cancer...

Hair Loss and Hormones: Thyroid, Androgens, and Nutrient Tests

Learn how hair loss and hormones connect, when thyroid and androgen testing helps, which nutrient tests matter most, and how to tell diffuse shedding from pattern thinning.

Hair loss rarely feels minor when it is happening to you. A wider part, more strands in the shower, or a thinner ponytail can...

Hashimoto’s Thyroiditis: Symptoms, Testing, and Treatment Options

Learn the key symptoms of Hashimoto’s thyroiditis, which blood tests and antibodies matter most, when treatment is needed, and how to manage thyroid health over time.

Hashimoto’s thyroiditis is one of the most common thyroid conditions, yet it often unfolds quietly. A person may spend months blaming fatigue, dry skin,...

Heavy Periods (Menorrhagia): Hormone Causes and When to Evaluate

Learn what counts as heavy periods, which hormone causes matter most, how doctors evaluate menorrhagia, and when heavy menstrual bleeding needs prompt medical attention.

Heavy periods are often minimized, even by people living with them. It is common to hear that “some women just bleed more,” yet truly...

High Calcium Symptoms: Causes, Tests, and When It’s Serious

High calcium symptoms can be subtle or serious. Learn the most common causes of hypercalcemia, which tests help confirm the diagnosis, how parathyroid disease fits in, and when a high calcium level needs urgent medical care.

High calcium often shows up in an unexpectedly quiet way. A routine blood test comes back abnormal, yet the person feels only a little...

High Cortisol Symptoms: Weight Gain, Anxiety, and Sleep Problems

Learn which high cortisol symptoms matter most, how cortisol can affect weight gain, anxiety, and sleep, when to suspect Cushing syndrome, and what testing usually looks like.

“High cortisol” has become a catch-all phrase online, often used to explain everything from stubborn weight gain to feeling wired at night. The truth...