WOW, if you've been Switched, don't even think about a vitamin source where there is any doubt at all, with such a short amount of intestine to bring in nourishment from your food, you NEED to most reliable proven way to get your vitamins !
I had a gastric bypass 5 years ago. I am trying the patches. When I started I knew that I was already low on iron. I am also low on Vit D. A month later I retook a blood test. Iron came up but vitamin D is still down. I would recommend that you make sure that you use the patch every day.
