I'm thinking of trying Solgar Megasorb B-Complex as well as my B12 sublingual and my cod liver oil capsuls. I looked up the ingredients and it contains soya lecithin 50 mg. Is that ok to take or will it react with my underactive thyroid. Should I avoid anything containing soya. I was also looking at Solgar B-Complex but it contains 100 mg of B6 and I see here on the forum that it is too much to take. Just want to know which would be best.