The ProMetabolic Journal
Practical, science-backed articles for women ready to stop restricting and start supporting their bodies — thyroid first.
Latest Articles
Thyroid Health
Heavy periods, missed cycles, PMS that wrecks a week, trouble conceiving — these are often one thyroid problem showing up in different places. Here's exactly how the connection works.
Read article →Thyroid Health
Seed oils, raw kale, soy, fasting — some foods actively suppress thyroid function. Here's the full list of what's working against you in the background, and the mechanism behind each one.
Read article →Thyroid Health
Sleeping 8 hours and still exhausted by 10am? Thyroid fatigue is a specific kind of tired — heavy limbs, afternoon crashes, no improvement from rest. Why it happens, and what actually helps.
Read article →Thyroid Health
Cold hands, cold feet, reaching for a jumper when everyone else is fine? Low body temperature is one of the oldest, most reliable signs of a slow thyroid — even with "normal" labs. The science, and how to track your own pattern at home.
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Hair in the drain, a thinner ponytail, eyebrows disappearing? It's real and it's reversible. Why a slow thyroid makes your hair fall out, why crash dieting makes it worse, the deficiencies behind it, and what actually helps it grow back.
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Told your racing heart, 3am panic, brain fog and flat mood are "just stress"? A slow thyroid causes every one of those — through your blood sugar and brain chemistry, not your character. The mechanism, and how food calms it.
Read article →Thyroid Health
Your TSH is "perfect" now but you feel exactly the same? You're not imagining it. The 6 reasons levothyroxine often isn't enough — conversion, absorption, reverse T3, missing nutrients — what to ask your doctor, and what helps from the kitchen.
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Eating less and exercising more but the scale won't budge? It's not willpower. Here's why a slow thyroid causes weight gain, why restrictive dieting makes it worse, and what actually helps your metabolism — without crash dieting.
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Diagnosed with Hashimoto's and told to just take the pill and wait? The full food list — what to eat, what to avoid, the nutrients that lower antibodies, and why the standard restrictive diet often makes women feel worse.
Read article →Thyroid Health
Your TSH is in range but you're exhausted, foggy, cold and gaining weight? You're not imagining it. The 5 tests your doctor should actually run — and why Ray Peat said the lab numbers were never the point.
Read article →Pro-Metabolic Eating
Most nutrition advice tells women to eat less. Pro-metabolic eating says the opposite. Here's what it is, what the science says, and how to start.
Read article →Thyroid Health
Always cold? Always tired? Hair thinning? Your thyroid might be running slow — even if your doctor says you're fine. 7 signs to watch for, in plain English.
Read article →Pro-Metabolic Nutrition
A simple daily salad that supports oestrogen clearance and gut health. Sounds too easy — here's the science behind why it works.
Read article →Pro-Metabolic Eating
Tired on keto? Hair falling out from fasting? Period gone since cutting carbs? The science on why restrictive diets destroy your metabolism — and what Ray Peat got right.
Read article →Pro-Metabolic Eating
The complete list of best foods for hypothyroidism, based on Ray Peat's research. What to eat for thyroid health, what to avoid, and a sample one-day eating plan.
Read article →Pro-Metabolic Eating
The most trusted supplement in wellness is quietly behind a lot of bloating, breakouts and stalled hormone recovery. The pro-metabolic case against whey, plant and casein powders — and what to eat instead.
Read article →Pro-Metabolic Eating
Ray Peat spent fifty years researching thyroid, hormones and metabolism — and arriving at conclusions that contradict almost everything mainstream nutrition teaches. Here's who he was and why his work matters.
Read article →Pro-Metabolic Nutrition
Seed oils and polyunsaturated fats suppress thyroid function and interfere with cellular energy. Here's how to identify and remove them.
Read article →The ProMetabolic app gives you an AI nutrition coach, personalised meal plans, a PUFA tracker, 50+ recipes, and a BBT temperature tracker — all in one place.
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