Natural vs Synthetic Vitamins

My NUT told me that it is better to get our nutrition from our foods. Which I know to be true. This is because our bodies recognize, metabolize and absorb the nutrients better. So, now we are told to take bariatric vitamins for life because we don't absorb vitamins as well. However, I think the jury is still out on how safe/effective synthetic vitamins are. Now I am seeing natural vitamins and minerals out there and wonder if anyone has tried these and what your experience has been. This will be the topic of my next NUT meeting since the fake sugars in the chewables I am taking give me heartburn or gas and we're in this for the long haul, so I want the best quality I can get.