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GLP-1 research, clearly explained.

What the trials found. What the label says. What your prescriber needs to know. Every claim cites its primary source.

In focus

Retatrutide just posted up to 30% weight loss. What it means for women.

The triple agonist behind the field’s biggest trial number: the science, the comparison, and the muscle stakes, with every claim cited.

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WegovyOzempicMounjaroSide effectsZepboundSafetyNutritionMuscleRetatrutideCycle
Liver

GLP-1s and fatty liver: what the new MASH approval actually means for you

Fatty liver is common, quiet, and more frequent in women than most people realise. In 2025 and 2026, GLP-1 medications became the first drugs approved to treat its serious form.…

May 29, 20266 min read
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Heart health

GLP-1s and your heart: the protection that starts before the weight comes off

Ozempic and Mounjaro do more than shrink the scale. They lower the risk of heart attack and stroke, and the latest data shows the protection begins early, before most of the…

May 29, 20266 min read
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Retatrutide

What 30% weight loss means for women: retatrutide, muscle, and the higher stakes

The biggest weight-loss number the field has seen is also the biggest test of a quiet truth: the more you lose, the more muscle is on the line. For women, with less muscle to…

May 23, 20267 min read
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Retatrutide

Retatrutide vs tirzepatide vs semaglutide: how to think about the triple agonist

One receptor, two, or three. The numbers climb with each. But the drug that wins on a trial chart is not always the one that's right for you, and the newest one isn't available…

May 22, 20267 min read
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Retatrutide

Retatrutide, explained: the triple agonist behind 30% weight loss

Lilly's TRIUMPH-1 trial just reported the highest weight loss the field has seen, up to 30% of body weight. Here is what retatrutide actually is, what the numbers mean, and the…

May 21, 20266 min read
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Side effects

Alcohol on a GLP-1: what changes, what doesn't, and the one drink that catches everyone out

The drug doesn't ban alcohol. Your body just reads it differently now. Here's what the early evidence shows about why drinking on a GLP-1 feels strange, and the practical rules…

May 20, 20265 min read
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Mounjaro

GLP-1s and the pill: a warning women on Mounjaro and Zepbound need to read

Tirzepatide can reduce the effectiveness of oral contraceptives. The label is clear about it; the conversation often isn't. Here is what to know, what to switch to, and for how…

May 20, 20265 min read
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Side effects

Gallbladder risk on a GLP-1: what to watch for, and what protects you

Fast weight loss is the biggest single risk factor for gallstones. GLP-1s deliver fast weight loss. Here is what the data shows about the actual risk, and the small things that…

May 20, 20265 min read
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Hydration

Hydration on a GLP-1: why your thirst is lying and what to do about it

The drug doesn't only quiet hunger. It quiets thirst too. The result is a low-grade dehydration that drives nausea, fatigue, constipation, and headaches. Here is the simple rule…

May 20, 20264 min read
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Mental health

Mood, anxiety, and GLP-1s: what the data actually shows

There were reports. There were FDA reviews. There were headlines. Here is a careful look at what the suicidality and mental-health data on GLP-1s really says, and what to do if…

May 20, 20266 min read
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PCOS

GLP-1s and PCOS: what the early evidence shows for women with insulin resistance

Polycystic ovary syndrome and GLP-1 weight loss interact in ways that are still being studied. Here is what the small but growing literature shows about cycles, fertility, and…

May 20, 20266 min read
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Perimenopause

GLP-1s in perimenopause: why the same dose hits different

The years before menopause change body composition, insulin sensitivity, and how a GLP-1 feels. Here is what shifts, and the small adjustments that make the medication work with…

May 20, 20266 min read
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Pregnancy

GLP-1s and pregnancy: the two-month wash-out you need to plan for

GLP-1s are not approved for use in pregnancy. The standard guidance is to stop the medication two months before trying to conceive. Here is the reasoning, the gap in the data, and…

May 20, 20266 min read
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Sleep

GLP-1s and sleep: better, worse, or both?

Some women sleep better the moment they start. Others develop new acid reflux at 3am for the first time in their lives. Here is what the literature says, and what to do if the…

May 20, 20265 min read
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Thyroid

The thyroid black-box warning, explained for women on a GLP-1

Every GLP-1 label carries the same warning about thyroid tumours. The animal data is real. The human signal so far is small. Here is what to actually do with that information.

May 20, 20265 min read
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Bone health

Bone density on a GLP-1: a quiet question worth asking

Rapid weight loss has always affected bone. The GLP-1 era is a new test of an old finding. Here is what the early data shows, and the three small habits that protect your skeleton…

May 20, 20265 min read
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Compounded

Compounded semaglutide and tirzepatide: what is, and isn't, the same

When supply ran short, compounded versions of GLP-1s flooded the market. With the shortage over, the FDA is winding them down. Here is what the difference actually is, and why…

May 20, 20265 min read
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Side effects

Constipation on a GLP-1: the fibre, water, magnesium loop that actually works

Slower gastric emptying is how GLP-1s work. It is also why a third of women on the drug develop constipation. Here is the protocol that fixes it without bringing back hunger.

May 20, 20265 min read
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Doctor

How to make your GLP-1 doctor's visit actually useful

Ten minutes goes fast. Most women leave the appointment without having asked the questions that would have changed the next three months. Here is the worksheet to walk in with.

May 20, 20265 min read
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Side effects

GLP-1 fatigue: why month two flattens you, and what to do about it

The exhaustion that hits at week six is one of the least talked-about side effects of GLP-1s. Here is the math behind it, not enough food, not enough protein, not enough…

May 20, 20265 min read
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Side effects

GLP-1s and gastroparesis: separating the noise from the signal

Reports of severe stomach paralysis on GLP-1s made headlines in 2023. The data since has been more careful. Here is what gastroparesis is, who it actually happens to, and the…

May 20, 20265 min read
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Injection

How to rotate your GLP-1 injection sites, and why it matters more than you think

Always the same spot. Always the same time. Always the same low-grade lump under the skin. Here is the rotation pattern that prevents lipohypertrophy, and the technique notes most…

May 20, 20264 min read
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Metabolism

Insulin resistance on a GLP-1: the metabolic marker that often changes first

The scale is the slowest line on the chart. Insulin resistance often improves before the weight changes meaningfully, sometimes within weeks. Here is what that means, and what to…

May 20, 20265 min read
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Side effects

Pancreatitis on a GLP-1: rare, real, and exactly what to watch for

Acute pancreatitis on a GLP-1 is uncommon, but it is the side effect that earns a label warning for a reason. Here are the exact signs that should send you to A&E, and the people…

May 20, 20265 min read
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Plateau

The month-four plateau on a GLP-1: why it happens, and what to do about it

The first eight weeks fly. Then the scale stops. This is not the drug failing, it is your body doing what bodies do. Here's the maths, and the three levers that move it again.

May 20, 20266 min read
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Maintenance

What happens when you stop a GLP-1, and the maintenance plan most prescribers forget to give you

STEP 1 Extension was honest about it: stopping the drug brings most of the weight back within a year, on average. Here is why, who keeps the weight off, and the maintenance plan…

May 20, 20266 min read
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Strength training

Strength training on a GLP-1: a programme that fits a tired, hungry body

You don't need a gym membership. You need two sessions a week, each twenty to thirty minutes, that hit the muscles your body would otherwise quietly let go of. Here is the…

May 20, 20265 min read
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Dosing

Pausing your titration: the dose-hold most prescribers don't mention

Standard GLP-1 protocols climb the dose every four weeks. Nothing in the label requires that. The pause that protects skin, muscle, and mood is one of the most useful, and least…

May 20, 20265 min read
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Mounjaro

Mounjaro vs Wegovy: how to think about the choice

Tirzepatide loses more weight on average. Semaglutide has more years of safety data. The right answer is rarely about averages, here's the framework your prescriber is probably…

May 20, 20267 min read
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Side effects

Ozempic face: what it is, what helps, what doesn't

Loose skin and a hollow look after fast weight loss has a name now. It isn't the drug, it's the speed. Here's what the evidence says about slowing it down without slowing your…

May 20, 20266 min read
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Cycle

Your cycle and your GLP-1: why month three feels like four different medications

Gastric emptying, appetite, and water retention shift across the menstrual cycle, and GLP-1s stack on top. A phase-by-phase guide.

April 19, 20266 min read
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Side effects

Hair shedding on Ozempic: why it happens at month three, and what actually helps

Telogen effluvium is the medical name. Rapid weight loss is the trigger. Protein, iron, and patience are most of the answer.

April 19, 20266 min read
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Muscle

Muscle on a GLP-1: the 2-hour-a-week rule that changes everything

Protein alone slows muscle loss. Protein plus two short resistance sessions a week preserves it. The evidence, and a practical starting plan.

April 19, 20266 min read
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Side effects

Nausea on day three: what actually works, and when to call your doctor

Most GLP-1 nausea peaks 48–72 hours after the shot, then eases. Here is the evidence-based playbook, and the red flags that override it.

April 19, 20266 min read
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Muscle

Why 120 grams of protein matters when you can barely eat breakfast

A third of the weight lost on a GLP-1 can be muscle. Here's what the research says about protecting lean mass when appetite disappears.

April 19, 20266 min read
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