Today I wanted to share some fascinating insights on how nutrition interacts with your genes and why it's crucial to be mindful of certain nutrients, particularly folic acid.
Nutrition and Your Genes
Our genes are not just static blueprints; they interact dynamically with the environment, including the food we consume. This field, known as nutrigenomics, explores how nutrients can influence gene expression and overall health. By understanding these interactions, we can make more informed dietary choices that support our genetic makeup, potentially reducing the risk of chronic diseases and improving our well-being.
The Case Against Folic Acid
Folic acid, a synthetic form of folate (vitamin B9), is commonly added to processed foods and dietary supplements. While folate is essential for numerous bodily functions, including DNA synthesis and repair, the synthetic form, folic acid, may not be the best choice for everyone.
Here's why you might want to avoid folic acid:
Genetic Variants: Many people have genetic variations (such as DHFR, MTHFR and MTR mutations) that affect their ability to convert folic acid into its active form, methyl folate. This can lead to an accumulation of unmetabolized folic acid in the bloodstream, which may have adverse health effects. BTW I never recommend supplementing with methyl folate until we know your methylation is balanced - by doing so can make things worse for some people!
Health Risks: Unmetabolized folic acid has been associated with several health concerns, including an increased risk of certain cancers, impaired immune function, and potential interference with vitamin B12 metabolism.
Natural Sources: Opting for natural sources of folate, such as leafy greens, legumes ensures better absorption and utilsation by the body. AVOID foods that state that they’re fortified with folate as this will be synthetic folic acid.
What You Can Do
Check Labels: Be mindful of supplement labels for folic acid.
Genetic Testing: Consider genetic testing to understand how your body processes folate. This can provide personalized insights into your nutritional needs – especially important if you have an immune or chronic health condition.
Whole Foods: Emphasise a diet rich in whole, unprocessed foods to ensure you get a variety of nutrients that support your genetic health. AVOID processed foods that state they have folate added (it will be the synethic folic acid).
Understanding the interaction between nutrition and genetics can empower you to make dietary choices that align with your unique genetic profile, promoting optimal health.
Vanessa Vanderhoek is a integrative & functional medicine nutritionist specialising in the gut microbiome, biochemistry and nutrigenomics. She helps people to regain their health by taking a “food as medicine” approach that's unique to their body. Vanessa is based in Australia and has clients around the world. Book an appointment online by clicking here.