I tried different types of iron capsules, and none were making a difference with my anemia. I could tell this product started working quickly. I had less dizzy spells, and felt less exhausted and nauseated within a couple of days. I within 2 months, I am almost back to normal - feeling strong, able to weight lift and do intense cardio, my nails feel strong, my face has a healthy colouration to it instead of having sunken dark circles on a pale surface. But, this stuff is shockingly horrible tasting! I'm not bothered by most tastes, but the very intense iron flavour seems to coat my whole mouth and throat and ruin any eating or drinking experiences for hours after. I found that plugging my nose while drinking it quickly, then immediately chewing a vitamin C caplet for help with absorption, and then brushing my teeth makes the process just fine. I take it at bedtime, so it also doesn't have a chance to cause stomach upset. Highly recommend this product, with knowing the warning about how gross it tastes.