Can I take Vitamin B complex and Vitamin C together?

Why this happens

Both Vitamin B complex and Vitamin C are water-soluble. This means they do not build up in the body; instead, the body uses what it needs and flushes out any excess through urine. They do not interfere with each other's absorption or metabolism.

What you should do

It is perfectly safe to take these together. For the best absorption, take them with a glass of water. Since Vitamin B can sometimes be stimulating, taking them in the morning is usually best to avoid any disruption to your sleep.

Important precautions

Bleeding disorders

Rosehip contains vitamin C and other compounds that may slow blood clotting. This can increase the risk of bruising and bleeding, particularly if you are already taking blood-thinning medications or have a scheduled surgery.

Kidney stones (renal calculi)

High doses of vitamin C can increase the amount of oxalate in your urine, which significantly raises the risk of developing kidney stones, especially if you have had them before.

G6PD deficiency

Very high doses of vitamin C can cause oxidative stress and lead to the breakdown of red blood cells (haemolysis) in individuals with G6PD deficiency.

Food and drink warnings

Alcohol

It is best to avoid or strictly limit alcohol while taking Vitamin B complex. Alcohol interferes with the absorption of B vitamins and can increase the rate at which your body loses them, making the supplement less effective. Additionally, chronic alcohol use can lead to B vitamin deficiencies.

Caffeine (Coffee/Tea)

Caffeine can act as a mild diuretic, which may increase the rate at which water-soluble vitamins like B complex and Vitamin C are flushed out of your body through urine. It is best to take your vitamins with water rather than tea or coffee.

Using other medicines

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.