It is active in metabolism of protein and is required for synthesis of insulin and maintenance of immunity. (gmwatch.org)
VITAMIN B - 6: (Pyridoxine HCl) Aids metabolism of protein carbohydrates and fats; controls cholesterol level; aids chemical balance between blood and tissue; prevents water retention; builds hemoglobin. (pharmicsvitamins.com)
This perpetuates the Hashimoto's vicious cycle by a slowed metabolism of proteins. (thyroidpharmacist.com)