Can folic acid tablets be taken together with vitamin C?

Many people know that women should supplement with folic acid before conception and during early pregnancy. But can folic acid tablets be taken together with vitamin C? Let’s explore this further.

Can folic acid tablets be taken together with vitamin C?

Folic acid tablets and vitamin C should not be taken simultaneously. Folic acid is a water-soluble vitamin that the human body cannot synthesize on its own and must therefore be obtained from dietary sources. Folic acid is easily degraded in acidic environments but remains relatively stable in neutral or alkaline conditions. In contrast, vitamin C as well as vitamins B₂ and B₆ are more stable in acidic environments.

If folic acid is supplemented concurrently with vitamin C, vitamin B₂, or vitamin B₆, their opposing environmental stability requirements will compromise the absorption of both. Therefore, it is recommended to separate the administration times of these supplements by at least 30 minutes. Hence, there is indeed a degree of incompatibility between folic acid and vitamin C.

Vitamin C preparations require an acidic environment for optimal stability of their active components. Taking vitamin C supplements concurrently with folic acid–containing foods or folic acid supplements creates conflicting stability requirements, thereby reducing the absorption efficiency of both nutrients. Specifically, co-administration of vitamin C and folic acid may inhibit folic acid absorption in the gastrointestinal tract, and high doses of vitamin C can accelerate folic acid excretion.

Thus, individuals consuming more than 2 grams of vitamin C daily must increase their folic acid intake accordingly. For this reason, it is advisable not to take folic acid tablets and vitamin C supplements simultaneously.

We hope the above information is helpful to you.