Can I take Collagen and Magnesium together?

Why this happens

Collagen is a protein that is broken down into amino acids during digestion, while magnesium is an essential mineral. They use different pathways for absorption in the gut and do not interfere with how the body processes or uses each other.

It is safe to take collagen and magnesium together. You can take them at the same time of day or separately. Always follow the dosage instructions on the product labels and consult a healthcare professional if you have underlying kidney issues, as the body relies on the kidneys to remove excess magnesium.

Chronic Kidney Disease (CKD)

If you have severe kidney problems, your body cannot clear excess magnesium. This can lead to toxic levels in the blood, causing dangerous heart rhythms or muscle weakness.

Dairy products and high-calcium foods

Calcium and magnesium compete for absorption in the body. If you take a high-dose magnesium supplement at the same time as eating large amounts of dairy (like cheese, milk, or yoghurt), your body may absorb less of the magnesium. It is best to space these apart by at least 2 hours.

High-fibre foods and Phytic Acid

Foods very high in fibre or phytic acid (such as whole-grain cereals, bran, and legumes) can bind to magnesium in the gut and reduce how much is absorbed. Try to take your magnesium supplement at a different time from very high-fibre meals.

Alcohol

Chronic or excessive alcohol consumption increases the amount of magnesium the kidneys flush out of the body through urine. This can lead to low magnesium levels over time, potentially making your supplement less effective.

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.