Evidence-Based Supplement & Herb Guides

HRT Explained: Benefits, Risks, and Who May Be a Candidate

HRT explained clearly: learn the real benefits, risks, and who may be a candidate for hormone replacement therapy, including how age, timing, uterus status, and treatment route shape safer menopause care.

Hormone replacement therapy, or HRT, is one of the most effective treatments for the symptoms that can make perimenopause and menopause feel physically and...

HRT vs Birth Control Pills for Perimenopause: Symptom Relief, Contraception, and Risks

Compare HRT and birth control pills for perimenopause, including which helps hot flashes, bleeding, and contraception most, plus the key safety differences and when switching makes sense.

Perimenopause is often messy rather than dramatic. One month may bring heavier periods, the next skipped bleeding, then suddenly night sweats, poor sleep, breast...

Hyperparathyroidism: Symptoms, Causes, and Treatment Options

Learn the symptoms, causes, diagnosis, and treatment options for hyperparathyroidism, including surgery, lab testing, bone risks, and when to seek care.

Hyperparathyroidism is a disorder in which one or more parathyroid glands release too much parathyroid hormone, or PTH. These four small glands sit behind...

Hyperthyroidism Symptoms: Anxiety, Weight Loss, and Heart Palpitations

Learn how hyperthyroidism can cause anxiety, weight loss, and heart palpitations, plus the common causes, testing steps, treatment options, and urgent warning signs to watch for.

An overactive thyroid can make your whole body feel sped up in ways that are easy to misread. What looks like worsening anxiety, unexplained...

Hypoglycemia in Pregnancy: Causes, Symptoms, and What Helps

Learn what causes hypoglycemia in pregnancy, how low blood sugar feels, what helps right away, and which food, monitoring, and treatment changes can prevent repeat episodes.

Pregnancy changes the way the body handles glucose from one trimester to the next. For some people, that means blood sugar can drop more...

Hypoparathyroidism: Symptoms, Causes, and Treatment Basics

Learn the key hypoparathyroidism symptoms, common causes, diagnostic tests, treatment options, and follow-up basics, including calcium, vitamin D, and when urgent care is needed.

Hypoparathyroidism is a rare endocrine disorder, but its effects can be felt in very ordinary ways: tingling fingertips, muscle cramps that seem to come...

Hypothalamic Amenorrhea: Missed Periods, Under-Fueling, and Recovery Basics

Learn what hypothalamic amenorrhea is, why under-fueling and stress can stop periods, how doctors diagnose it, and what recovery usually involves for cycle and bone health.

A missed period can feel easy to explain away. Training got harder, life got busier, meals became “cleaner,” sleep got worse, and the cycle...

Hypothyroidism Symptoms: Fatigue, Weight Gain, and Brain Fog

Learn the most common hypothyroidism symptoms, including fatigue, weight gain, and brain fog, plus causes, diagnosis, treatment, and what to expect as thyroid levels improve.

Hypothyroidism rarely announces itself with one unmistakable sign. More often, it arrives as a quiet slowing: mornings feel heavier, concentration slips, the scale inches...

Inositol for PCOS: Benefits for Cycles, Cravings, and Insulin Resistance

Learn how inositol may help PCOS symptoms such as irregular cycles, cravings, and insulin resistance, including the best forms, safety, dosing, and when it fits into a broader treatment plan.

For many people with PCOS, the hardest part is not a single symptom. It is the pattern: irregular cycles, stubborn cravings, rising insulin, mood...

Insulin Resistance Symptoms: Early Signs and How to Reverse It

Learn the early symptoms of insulin resistance, how it is tested, who is most at risk, and the practical food, exercise, sleep, and medical steps that can help reverse it early.

Insulin resistance often begins quietly. Long before someone is told they have prediabetes or type 2 diabetes, they may notice smaller changes that do...

Iodine and Thyroid: When It Helps and When It Makes Things Worse

Learn when iodine supports thyroid health, when supplements help, and why too much iodine can worsen hypothyroidism, hyperthyroidism, nodules, or autoimmune thyroid disease.

Iodine has an unusual reputation in thyroid health. It is essential, but it is not gentle. The thyroid needs iodine to make T4 and...

Iodized Salt vs Sea Salt: Thyroid Support, Iodine Needs, and Sodium Tradeoffs

Learn whether iodized salt or sea salt is better for thyroid support, how much iodine you actually need, and how to balance iodine intake with smart sodium limits for everyday health.

Salt has become a surprisingly emotional food. For some people, sea salt feels cleaner and more natural. For others, iodized salt sounds old-fashioned or...

Irregular Periods: Hormone Causes, Common Tests, and Next Steps

Learn what irregular periods can mean, which hormone causes are most common, what tests doctors often order, and when cycle changes need faster evaluation or treatment.

A menstrual cycle rarely follows a perfect calendar, but there is a difference between normal variation and a pattern that signals ovulation or hormone...

Kidney Stones and Calcium: When High Calcium Is the Cause

Learn when kidney stones point to high calcium in the blood, how hyperparathyroidism fits in, which tests matter most, and how to prevent recurrence without making calcium mistakes.

Many people hear they have a “calcium stone” and immediately assume they must be eating too much calcium. That sounds logical, but it is...

Late-Night Eating and Hormones: Blood Sugar, Cortisol, and Morning Hunger

Learn how late-night eating affects blood sugar, cortisol, sleep, and morning hunger, plus practical ways to reduce cravings, improve meal timing, and support steadier hormone rhythms.

Late-night eating often gets framed as a simple discipline problem: eat earlier, sleep better, lose weight. Real life is rarely that neat. Evening hunger...

Leptin Resistance: Hunger, Weight Gain, and What Helps

Learn what leptin resistance is, why it can drive hunger and weight gain, how it overlaps with insulin resistance and poor sleep, and what practical strategies can actually help.

There is a particular kind of hunger that feels less like simple appetite and more like a signal that never fully turns off. You...