UK weight loss medicine prices
Women's health and nutrition, written for life on a weight loss jab or pill
20 plain guides on the things the pharmacy leaflet skips: what the medicines do to your cycle, how to eat enough protein when you can only face half a plate, which blood tests are worth asking for, and how to keep your muscle while the scales drop.
Written by Sian Anderson. Every clinical claim links to its source. Information, not medical advice. Updated 21 October 2026.
Weight loss medicines and women
Periods, PCOS, perimenopause, contraception and fertility while you take a weight loss jab or pill.
Periods on a weight loss jab: what changes, and when to worry
Why your cycle can shift on Mounjaro, Wegovy or a weight loss pill, what counts as normal, and the changes worth a phone call to your GP.
PCOS and weight loss medicines: what to expect
How weight loss jabs and pills fit with PCOS, now called PMOS by the NHS: periods, ovulation, insulin, hair and the contraception point most women miss.
The pill and weight loss jabs: when you need a backup
Mounjaro can reduce how much of the pill you absorb. What the NHS says to do for 4 weeks after starting and after each dose rise, and how Wegovy, the Wegovy pill and Foundayo compare.
Fertility, pregnancy and weight loss medicines: how to time it
How long to stop Mounjaro (4 weeks) or Wegovy (2 months) before trying to conceive, what to do if you find out you are pregnant, and breastfeeding.
Perimenopause, HRT and weight loss medicines
Why weight shifts to the middle after 40, how the jabs and pills fit with HRT, and the two things to protect while you lose weight in your 40s and 50s: muscle and bone.
Hair loss on weight loss medicines: why it happens and when it stops
Hair shedding is a listed side effect of Mounjaro and Wegovy. What telogen effluvium is, the trial numbers, the iron and protein checks worth doing, and the regrowth timeline.
Eating well on a smaller appetite
Protein, fibre, fluids and the meals that stay down when you can only manage a little.
Protein on a small appetite: how much, and how to fit it in
The protein target while losing weight, 1.2 to 1.6g per kg a day, why it protects muscle, and a day of meals that hits it when you can only face half a plate.
Constipation on a weight loss jab: fibre, fluid and what works
Why the medicines cause constipation, the 30g fibre target most UK women miss by a third, the foods that get you there on a small appetite, and when to use a laxative.
Drinking enough on a weight loss jab, when you never feel thirsty
Why dehydration is the hidden cause of the headaches, dizziness and constipation on weight loss medicines, the 6 to 8 glass target, and how to drink more when you feel full.
Meals that stay down: eating through the nausea weeks
Nausea is the most common side effect of every weight loss medicine, worst in the first weeks and after each dose rise. The foods that help, the ones that make it worse, and a week of meals.
Alcohol on a weight loss jab: what changes
You can drink on the medicines, but it hits harder, the hangover is worse and many people lose the taste for it. The UK 14-unit limit, the blood sugar point, and the pancreas warning.
Eating too little on a weight loss jab: the warning signs
The medicines can switch appetite off so well that you under-eat for weeks. The signs, the gallstone risk the leaflets warn about, the 800-calorie line, and how to eat enough without forcing it.
Women's health
Iron, bones, thyroid, sleep and hormones. The checks worth asking for and the numbers behind them.
Iron, tiredness and heavy periods: the blood test to ask for
Iron deficiency is the most common nutrient shortfall in UK women and heavy periods are the usual cause. What ferritin means, the foods that help, why tea and calcium get in the way, and how to take tablets without the stomach upset.
Bone health while losing weight: calcium, vitamin D and load
Fast weight loss lowers bone density a little, and women lose bone fastest after the menopause. The 700mg calcium target, the 10 microgram vitamin D rule, who should ask for a DEXA scan and the exercise that loads bone.
Thyroid checks for women: when weight will not shift
Women are up to ten times more likely than men to have an underactive thyroid, and the symptoms copy both weight gain and weight loss medicine side effects. The TSH test, levothyroxine timing with a slow stomach, and the thyroid warning on the leaflets.
Sleep and weight loss: the link that runs both ways
Short sleep raises appetite hormones and makes weight loss slower. Weight loss in turn improves sleep apnoea, which is under-diagnosed in women. The 7 to 9 hour target, the injection timing that stops night nausea, and the snoring questions to ask.
Strength and movement
Keeping muscle while the scales drop, and the simplest ways to get stronger without a gym.
Keeping muscle while the scales drop
A quarter to two fifths of the weight lost in the big trials was lean tissue. Why muscle matters for the years after the medicine, and the two things with evidence for keeping it: protein and two strength sessions a week.
Strength training at home: 20 minutes, no kit, twice a week
Six moves that cover the whole body, how many to do, how to make them harder without buying anything, and how to fit two sessions into a week. Written for women starting from nothing.
Walking: the exercise that fits a weight loss jab
The 150-minute weekly target, what brisk means, why a ten-minute walk after meals helps the slow stomach, and how to build from nothing to 30 minutes a day without a step counter obsession.
Pelvic floor, leaking and exercise: what weight loss fixes and what it does not
One in three women leak at some point. Losing 5 to 10% of body weight cuts leaking episodes by almost half in trials. The pelvic floor exercise that fixes most of the rest, how to exercise without making it worse, and when to ask for a physio.
How these guides are written
Each guide is written by Sian Anderson and every clinical claim links to the NHS, NICE, a medical royal college, a regulator or a peer-reviewed paper. We name the dose, the number or the trial rather than saying "studies show". Nothing here is medical advice. Your prescriber knows your history and the guides do not.
Spotted a mistake or an out-of-date source? The sources list at the foot of each guide shows what we relied on. About MyGLP.