We take these because they are made from whole foods instead of synthetic. I read that non-synthetic vitamins are better even if they have less strength because they are absorbed better. Wish they were less expensive, but sometimes we get them on sale for less than at Iherb. We have changed to these from another brand which was taken over by Proctor&Gamble, a company that makes my favorite shampoo and dish-soap. Update: my doctor says everyone needs at least 25mg of B6, preferably in its bioavailable P-5-P form. Since MegaFoods only has 6mg of B6, I have to top-up with Source Naturals B6 (in its P-5-P form). Wish Mega had a little more B6!