First of all there is such thing as a methylation adaptogen, the person who wrote the article does not understand the term adaptogen. While Rosemary contains rosmarinic acid, it makes up a very small amount of the herbs constituents, so you cannot equate Rosemary the herb, to pure rosmarinic acid. As for MTHFR gene snips, they affect how well you can methylate and uptake certain B vitamins , as well as eliminate heavy metals and environmental toxins. So there is an interplay between diet/ nutritional intake, environmental exposure to toxins, ability to eliminate wastes via other metabolic pathways, taking substance that enhance methylation, gut health or dysbiosis, etc. So someone who has this can have different symptoms at different times in their life due to many other factors.
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