If you’ve typed evening primrose oil menopause weight gain into Google, you’re probably trying to work out whether a supplement you started to feel better could be making your body feel less predictable.
First, take a breath. In most cases, evening primrose oil is unlikely to be the main reason for menopause weight gain. It also isn’t a proven weight-loss supplement. The answer sits in the middle, and that’s usually where the helpful truth is.
Menopause can change weight, appetite, sleep, cravings, muscle tone and where your body stores fat. So if you’ve started evening primrose oil at the same time as these changes, it’s very easy to connect the two.
What is evening primrose oil?
Evening primrose oil is made from the seeds of the evening primrose plant. It contains a fatty acid called gamma-linolenic acid, often shortened to GLA.
GLA is an omega-6 fat. Your body can use it to make prostaglandins, which are chemical messengers involved in inflammation, skin function and other normal body processes.
That sounds quite technical, but the key point is this: evening primrose oil is not a hormone. It does not contain oestrogen. It does not directly replace the hormones that naturally decline during perimenopause and menopause.
Many women take it for breast tenderness, dry skin, premenstrual symptoms or hot flushes. Some feel it helps. Others notice no difference.
The research is mixed. A summary of evening primrose oil evidence notes that evidence for several uses, including menopausal symptoms, is limited. That doesn’t mean nobody benefits. It means we should be honest about what we can and can’t say.
Can evening primrose oil cause weight gain in menopause?
For most women, evening primrose oil is unlikely to cause meaningful weight gain.
It is an oil, so it does contain calories. One gram of fat provides around 9 calories. A 1,000 mg capsule contains about 1 gram of oil, so roughly 9 calories. Even two or three capsules a day is still a small amount in the context of your whole diet.
That amount alone would not usually explain several pounds of weight gain.
Where it gets confusing is timing. Many women start supplements during perimenopause or menopause, which is also the time when weight and body shape often start changing anyway.
The NHS menopause guidance explains that menopause symptoms are linked to changing hormone levels, especially oestrogen. These changes can affect sleep, mood, energy, body composition and weight distribution.
So the supplement may be getting the blame, when the bigger picture is hormonal change, sleep disruption, stress, reduced muscle mass, lower activity or changes in appetite.
| Common thought | What is more likely | What to do next |
|---|---|---|
| I started evening primrose oil and gained weight | Menopause changes may have started at the same time | Look at sleep, stress, meals, movement and symptoms together |
| Evening primrose oil is a fat, so it must make me gain fat | Capsule calories are usually very small | Check total food intake, snacks, alcohol and portion patterns instead |
| It made my stomach feel bigger | Bloating or digestive upset may be involved | Track digestion and consider pausing if symptoms started with the supplement |
| It will help me lose menopause weight | There is no strong evidence for this | Focus on protein, fibre, strength training and blood sugar balance |
Could evening primrose oil affect bloating or appetite?
Possibly, but not in the dramatic way many people worry about.
Some people experience digestive side effects from evening primrose oil. These can include nausea, loose stools, stomach discomfort or bloating. If your tummy feels fuller or your clothes feel tighter, that may feel like weight gain, even if it isn’t fat gain.
There is no strong evidence that evening primrose oil directly increases appetite. But if you feel more hungry after taking it, it’s worth tracking. Your body’s response matters, even when the research doesn’t give us a neat answer.
A simple way to check is to keep a short note for two to three weeks. Record when you take the supplement, any digestive symptoms, sleep quality, hot flushes, cravings and your weight trend. Don’t judge yourself by one daily weigh-in. Look for patterns.
If symptoms clearly started after taking evening primrose oil, stop and speak with your GP, pharmacist or practitioner before restarting, especially if you take medication.
Why menopause weight gain happens, with or without supplements
Menopause weight gain is rarely about one thing. It’s usually a combination of small shifts that build up over time.
Oestrogen changes can affect where fat is stored, often with more weight around the middle. Sleep can become lighter or more broken, especially if you’re having night sweats or waking at 3am. Poor sleep then affects hunger hormones, cravings and motivation to move.
Muscle mass also tends to decline with age unless we actively protect it. Muscle is metabolically active tissue, which means it uses energy. Less muscle can mean a lower daily energy burn.
Then there’s stress. Many women hit menopause while juggling work, ageing parents, teenagers, relationships, caring responsibilities and a long list of invisible labour. Chronic stress can make cravings stronger and can make weight loss feel harder.
Blood sugar balance matters too. If meals are mostly toast, cereal, crackers, coffee and quick snacks, you may get energy highs and lows. Those dips often show up as sugar cravings, evening grazing or feeling hungry soon after eating.
This is why I prefer to look at the full picture, not just one supplement.
If this sounds familiar, you may find my guide on hormone-related weight gain helpful.
Should you take evening primrose oil during menopause?
It depends on why you’re taking it, your medical history and whether you notice a clear benefit.
If you’re taking evening primrose oil because a friend recommended it, but you don’t know what it’s meant to help, that’s a sign to pause and reassess. Supplements are best used with a purpose.
If you’re taking it for breast tenderness or skin symptoms and you genuinely feel better, it may be reasonable to continue if it is safe for you. But I would still encourage you to review it now and then, rather than taking it indefinitely out of habit.
Food supplements are not tested in the same way as medicines, so quality and dose can vary. Choose a reputable brand, follow the label and avoid taking multiple hormone-related supplements at once without advice.
| Question to ask | Why it matters |
|---|---|
| What symptom am I using it for? | A supplement should have a clear reason |
| Have I noticed a real benefit? | If nothing has changed, it may not be worth continuing |
| Am I taking medication? | Some supplements can interact with medicines |
| Do I have a history of seizures, bleeding issues or cancer treatment? | Extra caution is sensible and medical advice is important |
| Am I relying on it instead of food, sleep and strength habits? | Supplements can’t replace the basics |
As a general safety rule, speak to your GP, pharmacist or healthcare team before taking evening primrose oil if you use blood-thinning medication, have epilepsy or a seizure history, are due for surgery, take regular prescription medication, or have had cancer treatment. If you are taking HRT, it’s still sensible to check before adding supplements.
Natural does not always mean suitable for everyone.
What helps menopause weight changes more reliably?
This is where food and lifestyle can make a real difference. Not through punishment or strict dieting, but through giving your body what it needs in this stage of life.
The British Dietetic Association menopause food advice highlights the importance of a balanced diet, calcium, vitamin D, fibre, healthy fats and lifestyle habits during menopause. In clinic, I often see the biggest changes when women stop chasing the perfect supplement and start building steadier meals.
Prioritise protein at each meal
Protein helps protect muscle, keeps you fuller for longer and supports steadier blood sugar. This becomes especially important in midlife.
Good options include eggs, Greek yoghurt, fish, chicken, tofu, tempeh, lentils, beans, cottage cheese, nuts and seeds.
If you’re unsure how much you need, my protein calculator can give you a helpful starting point.
Add fibre without going extreme
Fibre supports gut health, cholesterol, blood sugar balance and fullness. Most people in the UK don’t eat enough.
You don’t need to jump straight into huge salads if your digestion is sensitive. Start gently with oats, chia seeds, ground flaxseed, lentils, beans, berries, apples, vegetables and wholegrains.
Increase gradually and drink enough water. A sudden fibre increase can cause bloating, which is the last thing you want if you’re already feeling uncomfortable in your body.
Don’t cut fats too low
Healthy fats support hormones, brain health and satisfaction after meals. Ironically, cutting fat too low can leave you hungry and more likely to snack later.
Choose foods like extra virgin olive oil, avocado, nuts, seeds and oily fish. Evening primrose oil is one type of fat, but it doesn’t replace the broader benefits of a balanced, whole-food diet.
Strength train in a realistic way
You don’t need to become a gym person overnight. But resistance training is one of the most useful tools for menopause weight management because it helps protect muscle.
That might mean weights, resistance bands, Pilates, bodyweight exercises or supervised strength classes. Two to three sessions a week can be a strong starting point.
Walking still matters too. Especially after meals, a short walk can support blood sugar and digestion.
Build a menopause-friendly plate
A steady plate doesn’t need to be complicated. It just needs to be balanced enough to keep you full and energised.
| Plate part | What it could look like | Why it helps |
|---|---|---|
| Protein | Fish, eggs, tofu, chicken, Greek yoghurt, lentils | Supports muscle, fullness and blood sugar |
| Colour and fibre | Vegetables, berries, salad, beans, wholegrains | Supports gut health, cholesterol and appetite control |
| Smart carbohydrates | Oats, brown rice, quinoa, potatoes, rye bread | Provides energy without sharp crashes when paired well |
| Healthy fats | Olive oil, nuts, seeds, avocado, oily fish | Supports satisfaction and nutrient absorption |
For more practical meal ideas, my article on what to eat during menopause to lose weight goes into this in more detail.
A note on body confidence and quick answers
Menopause body changes can feel personal. It’s not vain to care. It’s not shallow to feel frustrated when your body seems to respond differently than it used to.
Some women try supplements. Some change their exercise. Some explore other options, including body contouring and cosmetic clinics. There’s no judgement in that.
My role as a nutritionist is to help you understand what’s actually driving the change, so any decision you make comes from clarity rather than panic.
Often, the most empowering first step is not doing more. It’s doing the right things consistently, in a way that fits your real life.
What to do if you think evening primrose oil is affecting your weight
Start by zooming out.
Has your sleep changed? Are you waking in the night? Have cravings increased? Are you eating enough protein at breakfast? Has your activity dropped because you’re tired? Are you more stressed than usual?
These questions may reveal more than the supplement label.
If you still suspect evening primrose oil is causing problems, consider a structured approach. Track symptoms for a couple of weeks. Speak with a healthcare professional if you take medication or have a medical history. If appropriate, stop the supplement and observe whether bloating, appetite or weight trends change.
Don’t keep taking something just because it’s marketed for menopause. And don’t blame yourself if weight has changed. Your body is not failing. It is responding to a different hormonal environment.
The aim is to work with that, not fight it.
Frequently Asked Questions
Does evening primrose oil cause weight gain in menopause? There is no strong evidence that evening primrose oil directly causes menopause weight gain. It contains a small number of calories because it is an oil, but typical capsule amounts are unlikely to explain significant weight gain.
Can evening primrose oil help with menopause weight loss? It is not a proven weight-loss supplement. For menopause weight management, you’ll usually get more benefit from protein-rich meals, fibre, strength training, better sleep and blood sugar balance.
Can evening primrose oil help hot flushes? Some women say it helps, but research is mixed and the evidence is limited. If hot flushes are affecting your quality of life, speak to your GP about all available options, including lifestyle support, HRT and non-hormonal approaches.
Should I stop taking evening primrose oil if I feel bloated? If bloating started after taking it, it may be worth pausing and checking whether symptoms improve. Speak to your GP, pharmacist or practitioner first if you take medication or have a medical condition.
Can I take evening primrose oil with HRT? Many women use supplements alongside HRT, but it’s still best to check with your GP or pharmacist. This is especially important if you take other medication or have a history of cancer treatment, seizures or bleeding issues.
What should I focus on first for menopause weight gain? Start with steady meals. Include protein, fibre-rich plants, smart carbohydrates and healthy fats. Then look at sleep, stress, alcohol, movement and strength training. These basics are often more powerful than adding another supplement.
Need help working out what’s right for you?
If menopause weight gain, cravings, low energy or sleep changes are making you feel unlike yourself, you don’t have to guess your way through it.
At Tracey Warren Nutrition, I offer personalised nutrition support from Nantwich, Cheshire, and via video call across the UK. We can look at your symptoms, food habits, lifestyle, medical history and goals, then build a realistic plan that suits you.
You’re welcome to get in touch or book a free 15-minute consultation if you’d like gentle, practical support with menopause nutrition and weight management.
