I have been taking VitaFusion B12 Gummy Vitamins for a while on the advice of my doctor due to low energy and fatigue. I had tried a liquid B12 vitamin, and it worked pretty well, but it tasted horrible. Since B12 deficiencies are often due to poor absorption in the intestine, I wasn't sure these B12 vitamins would work. Often an injection is the only way to make a real difference. However, I guess my levels are low enough to need the injection, and the oral supplements are enough. These gummy vitamins actually taste really good. The other gummy vitamins from this brand taste good too and seem to work well. I don't like taking a dense pill, so the gummy and liquid versions are always my first choice. These vitamins are also a good price, right in the middle, so not so cheap you are afraid to take them but not too expensive either. If you can find a coupon, that would make it even better.