This is THE BEST iron supplement I have tried and I can't function at my best without it. I have tried numerous iron supplements for my low iron levels from doctor recommended expensive brands to other highly rated brand supplements but none were as fast or effective as this one. The fact that it is so affordable is icing on the cake! It is a teeny, tiny tablet that is very easy to swallowing I only need one a day. I take it with a liposomal vitamin c supplement and natural vitamin b complex and I feel energetically 20 yrs younger!