Can I take Magnesium and Wegovy flextouch together?

Why this happens

Wegovy is a GLP-1 receptor agonist that delays 'gastric emptying' (the speed at which food and pills leave the stomach). This can alter the timing of absorption for oral supplements like magnesium. There are no shared metabolic pathways or conflicting chemical actions between the two.

It is generally safe to take magnesium while using Wegovy. To ensure the best absorption and to avoid any potential stomach upset, you may wish to take your magnesium supplement at a different time of day than when you experience the most side effects from your Wegovy injection. If you experience severe diarrhoea or stomach pain, consult your doctor.

Mental health changes - Wegovy

You must monitor your mood and tell your doctor immediately if you experience any sudden changes in mental health, including thoughts of suicide or self-harm.

Pancreatitis

Stop using Wegovy and seek immediate medical help if you experience severe and persistent stomach pain, which may reach through to your back, as this can be a sign of acute pancreatitis.

Gallbladder problems

Wegovy can cause gallstones or gallbladder inflammation. Report any sudden, severe pain in your upper right abdomen, yellowing of the skin or eyes (jaundice), or fever to your doctor.

Dehydration - Wegovy

Nausea and vomiting can cause dehydration. Ensure you drink plenty of fluids to avoid kidney problems, especially when starting treatment or increasing your dose.

Kidney disease

If you have severe kidney problems, your body may not be able to remove excess magnesium, leading to dangerously high levels in the blood. Check with your doctor before use.

Alcohol

It is best to avoid or strictly limit alcohol while taking Wegovy. Both alcohol and Wegovy can lower your blood sugar levels; combining them increases the risk of severe hypoglycaemia (dangerously low blood sugar). Additionally, alcohol can worsen common Wegovy side effects like nausea, vomiting, and dehydration.

It is best to avoid or strictly limit alcohol when taking magnesium. Alcohol acts as a diuretic, which can increase the amount of magnesium your body loses through urine, potentially making the supplement less effective. Additionally, chronic alcohol use can lead to magnesium deficiency.

Dairy products (Milk, Cheese, Yoghurt)

Avoid taking magnesium supplements at the same time as large amounts of dairy products. Dairy is high in calcium, and high doses of calcium can compete with magnesium for absorption in the gut, meaning you may not get the full benefit of your supplement. It is best to space them at least 2 hours apart.

Caffeine (Coffee, Tea, Energy drinks)

It is best to limit caffeine intake around the time you take magnesium. Like alcohol, caffeine has a mild diuretic effect and can increase the excretion of magnesium through the kidneys.

High-fat or Greasy foods

While not a direct chemical interaction, eating high-fat or fried foods while on Wegovy can significantly worsen gastrointestinal side effects such as nausea, bloating, and diarrhoea. Many patients find they need to eat smaller, lower-fat meals to tolerate the medication.

Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Disclaimer

This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.