Is your multivitamin or B-complex making you sick?
Take a look at the label on your multivitamin or B-complex and see if it contains “folic acid”.
Folic acid is often used interchangeably with “folate”, which is a vitamin needed for DNA synthesis and repair.
Every time our bodies make new cells (which is all the time), we need folate to move that process along.
Because very few of us North Americans get enough folate from leafy greens, folic acid, a synthetic precursor to folate, has been added to grain products, to “fortify” them.
Folate deficiency in pregnant women can lead to neural tube defects. Therefore making sure that your body has enough folate, especially if you’re pregnant or planning to conceive, is essential.
However, folic acid, the synthetic vitamin is NOT the same as the folate (look at the bottom of the chart below, another word for folate is 5-methyltetrahydrafolate, or 5-MTHF) that our bodies use for cell division and DNA synthesis.
As you can see by the picture, folic acid needs to go through several stages of transformation before it can be of any use to the body.
All of us are really poor at converting folic acid to DHF (first step in the pathway). This step is faster in rats. In humans, it’s abysmally slow.
This means we take folic acid from supplements and fortified grains and slowly pass it through the narrow DHFR sieve that all of us are born with. This slowly transforms our synthetic folic acid into DHF.
The same DHFR enzyme must take DHF and turn it into THF. Two steps: folic acid –> DHF –> THF. So far, none of these products is useful.
3 steps and 2 enzymes later, our body makes a product called 5,10 methylene THF, or folinic acid, which can be used for DNA repair and synthesis.
After that, an enzyme called MTHFR turns folinic acid into folate (5-MTHF). And yes, MTHFR does remind you of the word you’re thinking of!
About 40-60% of us are poor at the last step, making 5-MTHF, which results from a slow or completely impaired MTHFR gene which has trouble producing a fully functioning MTHFR enzyme.
Slow enzymes mean very few of us are going to take the folic acid from foods and cheap vitamins, and turn them into methylfolate.
Methylfolate (remember, NOT folic acid), is needed for important chemical reactions called “methylation” reactions.
Methylation is needed for with detoxification, liver function, managing inflammation, hormone production and recycling, and producing neurotransmitters. Research is establishing a connection between MTHFR gene mutations and mental health conditions, autoimmune conditions and heart disease, among other common health complaints.
Folic acid, when added to supplements isn’t just useless, however.
When it can’t be broken down (and remember, all of us are slow at the first stop, some of us just plain can’t perform the last step), it builds up in tissues, and can block ACTUAL methylfolate action.
It can also trigger inflammatory reactions.
Not good.
Most multivitamin and B complex brands at health food stores contain cheaper forms of B vitamins. Companies use folic acid and a cheaper, synthetic form of B12, called cyanocoblamin, when making products to cut costs.
This doesn’t mean you have to shell out a lot of cash for quality B complex vitamins, it just means you need to be smart about the B-complexes you buy.
B-complex vitamins can be useful for those who experience inflammation, hormone imbalances and chronic stress. We tend to use more B-vitamins, which are water-soluble, when stressed, and when on certain medications, such as birth control pills. Supplementing in these cases can be extremely helpful for boosting energy and mood, while lowering symptoms of PMS and inflammation, among other things.
Most of the patients who come into my office already on a B complex are on a form that contains folic acid. At best, their body is working harder than needed to convert this synthetic vitamin into something useful. At worst, this product may be causing them harm.
The first thing you can do, is check your multivitamins and B-complex products and see if they contain “folic acid” or “cyanocobalamin”. If so, you can toss them.
You can also consider getting tested to see if you have an MTHFR mutation. Keep in mind that naturopathic doctors who are registered in Ontario, Canada cannot recommend or interpret genetic testing.
Next, you can reassess your diet. Folic acid is also added to enriched grains. Those who are particularly sensitive to folic acid, may experience a worsening of inflammatory symptoms and mental health issues when consuming high amounts of these foods.
Also, eat plenty of leafy green vegetables, which DO provide your body with a useable form of folate, among their many other health benefits.
Finally, if you’re considering getting pregnant, have a naturopathic doctor assess your prenatal vitamins to tell you if the form of folate you’re taking is appropriate for you.
