Firstly, I didn't actually receive this product. It never even made it to UPS to be mailed to me, but Amazon refunded my money. Not sure what happened. I went to my local vitamin store and bought it for the same price.
I have only been taking it for a few days so I don't yet know what benefit it will have, but I wanted to write in about some of the drawbacks that other reviewers have experienced because I have experienced none. Some said that it can make you have digestive trouble or get constipated and I have had no problems with that. You do have to take this product concomitantly with plenty of water so maybe the reviewers that experienced this didn't follow those directions. I drink a lot of water normally and I didn't find it necessary to drink more when I started taking this supplement, but some people don't drink hardly any water in a typical day so they might have problems. Also, some people said the taste was so bad that they didn't continue to take it or switched to the pill form. I think these people must have more sensitive taste buds than I do. The taste is kind of metallic in nature, but no worse than when you bite your lip and you can taste the iron in your blood. I mix mine with about 3 ounces of plain water since I don't like juice and I hardly notice the taste at all. The instructions suggest mixing it with juice but I am not sure if that is just to mask the taste or if the acidity increases the absorption. I have experienced a moderate positive effect...I feel like I have more energy. Not like I am going to go out and run a marathon, just that I am not as generally tired or worn out over the course of the day...like I have a sustained level of energy. I don't know if this is supposed to be a side effect, maybe it is just coincidence.
I gave 3 stars since it didn't have any negative side effects and I will come back and edit my review when/if I start to see any positive results.