Which multivitamin is best for women taking Wegovy?

Why does Wegovy make micronutrient gaps more likely in women?

Wegovy works partly by slowing how quickly food leaves your stomach and by reducing appetite through GLP-1 pathways. That combination is effective for weight management, but it also means most people eat considerably less than before. Less food almost inevitably means fewer vitamins and minerals, even if the quality of what you eat improves.

Women face particular gaps. Iron requirements are higher during reproductive years, and even a modest reduction in dietary intake can tip someone from adequate to borderline. Folate matters enormously for anyone who might become pregnant. Vitamin B12, which is found mainly in meat, fish, eggs and dairy, can fall short on a restricted diet, and absorption becomes less reliable with age. Vitamin D and Wegovy is a combination worth understanding separately, because deficiency in the UK is widespread before any weight-loss medicine is involved, and rapid fat loss can alter how stored vitamin D is released.

None of this means Wegovy is unsafe, it means that eating thoughtfully and supplementing carefully are part of using it well. The NHS semaglutide information page notes that treatment should be used alongside a reduced-calorie diet and increased physical activity, which implicitly requires attention to nutritional adequacy.

What should a multivitamin for women on Wegovy actually contain?

There is no official licensed multivitamin formulated for GLP-1 therapy. What clinical guidance points toward is straightforward: cover the nutrients most at risk during caloric restriction and those with established higher requirements in women.

A practical checklist for the label: iron (14.8 mg daily is the UK reference intake for pre-menopausal women; post-menopausal women need considerably less, so check the dose); folate or methylfolate rather than folic acid alone is preferred by some clinicians for bioavailability; vitamin B12 at a meaningful dose (a token 2.5 mcg in a budget supplement is not equivalent to 25 mcg in a quality one); vitamin D at 10–25 mcg (400–1,000 IU), the NHS recommends 10 mcg for the general population, and many clinicians suggest the upper end when intake is restricted; zinc, magnesium, and selenium are worth including; calcium is harder to pack meaningfully into a tablet but matters for bone health alongside vitamin D.

Avoid products that pile in very high doses of fat-soluble vitamins A, D, E, and K on the basis that more is better, fat-soluble vitamins accumulate. A well-formulated supplement sits close to reference nutrient intakes rather than dramatically above them. If you want guidance on choosing a Wegovy multivitamin that meets these criteria, our dedicated page walks through what to look for on the label. For a broader look at how to approach this, the vitamins to consider alongside Wegovy covers individual nutrients in more detail.

Does taking Wegovy affect how well supplements are absorbed?

Gastric emptying is slower on semaglutide. This can in principle affect how quickly oral supplements are absorbed, though for most water-soluble vitamins the effect on total absorption is modest rather than dramatic. The more clinically relevant absorption question on this page concerns oral contraceptives: NHS England advises that there is no established evidence of reduced pill effectiveness with semaglutide specifically, unlike with tirzepatide. Still, if you take any oral medicine at a precise time for a specific clinical reason, it is worth flagging your Wegovy use to whoever manages that prescription.

A practical note: if nausea is a factor, particularly in the first weeks of treatment or after a dose step up, taking a multivitamin on an empty stomach can make it worse. Taking it with a small amount of food in the evening often settles that. Some women find slipping it into their routine alongside something already habitual (a glass of water before bed, or a snack after the school run) is the simplest way to stay consistent. Consistency matters far more than the exact time of day for most supplements.

The specific considerations for women on Wegovy page covers other lifestyle and clinical factors in more depth.

Is a specialist supplement worth the cost, or does a standard product do the job?

Supplements marketed specifically for GLP-1 therapy carry a price premium that is not always justified by meaningfully superior formulations. Before spending more, compare the label against the checklist above. A specialist product may be worth it if its iron, B12, and vitamin D doses are substantially higher than the budget alternative, not because the branding says so.

If you are buying a separate vitamin D capsule and a standard women's multivitamin, check you are not accidentally doubling up on fat-soluble nutrients from both. The total across your supplements and any fortified foods is what matters. For a practical overview of what Wegovy treatment as a whole involves financially, current Wegovy pricing sets out what a private prescription typically covers.

Blood tests are a reasonable idea if you have been on treatment for several months and are uncertain whether your current supplement is adequate. Your GP can check iron, B12, vitamin D, and folate with a standard panel. If you are unsure where to start, our FAQs cover common questions about ongoing support. For questions specific to your situation, speaking to our prescribers during a consultation is the most direct route.