While it’s important for all of us to support our methylation cycles for whole-body health and well-being, individuals with an MTHFR gene variation (i.e., 50% of the U.S. population) have methylation cycles that require a little extra help. This is because the MTHFR gene codes for the MTHFR enzyme, which critically activates folate to enable healthy homocysteine levels, optimal methylation function, and a number of other physiological processes.* When it comes to your environment, Carnahan recommends filtering the air and water in your house and eating foods that support detoxification. “A basic diet avoiding gluten and dairy would be helpful. Then clean food whenever possible: organic, pesticide free, and all that good stuff,” she says.