Hello. I am (I thought) a healthy 60-yr-old post-menopausal woman being treated for the last 40 yrs. for Hashimoto s thyroiditis who is a good weight at 105-8 lbs. at 4 10 and exercise 3 x week by swimming. My recent labwork has shown b12 deficiency (I have been eating primarily a vegetarian diet for the past 2-3 yrs.) so understand that this needs tx. I have been however taking a b-complex supplement including 50 mg. of several of the b vitamins including b12. I plan to start eating shellfish and other fish to raise my levels. However, I am concerned about my first-time-ever high triglyceride levels. I do not eat sugar or wheat flour and do not use alcohol at all. Is there some connection between b12 deficiency and the high triglycerides?