nothing wrong with these as far as i can tell but, i did have to stop taking them even though i did feel its benefit within first week as far as energy goes. i still felt slightly fatigued but, would get a couple boost of energy during the day and for first time in over a year, i was back to making homemade yogurt, cleaning neglected things in house (my cabinets are now decluttered) and so forth. my brain did feel less foggy as well and my Rosacea redness seemed to get helped my something in this vitamin as well. unfortunately even though this helped me, after second week i started having stomach pains, my Rosacea symptoms started getting worse and i was getting mild headaches from no longer being able to regularly rid of the nastiness inside me due to these constipating me badly. guessing too much iron for me (even though i lack it) or just too much probiotics when taking these and eating with daily cup of homemade extra fermented greek yogurt i suppose.. i did try just taking one capsule every other day instead but, that didn't stop the problem so given i love my daily yogurt snack, i have chosen to stop using these altogether and switch to a b-complex supplement instead with. great price however and probably great for those who lack iron and don't get any probiotics in them