Well mine was severely anemic. Had a full blood panel run. So there was a purpose for the red cell. I had cut the dose in half and was going to just keep it as a multivitamin type thing until I found out about the link with iron and laminitis and the such.
I am a big fan of good alfalfa and grass hay and some oil. But now I wonder if all that iron was perhaps causing Lizzy to have problems gaining weight?? Since getting her on just the alfalfa and oil with a vit/min supp I have cut my feed bill in half and may perhaps have to start cutting back her feed. I can just barely feel ribs lol.
Something that many people don't understand is that anemia isn't a disease. It's a symptom. If you don't treat the disease you won't fix the symptom (anemia). Red cell only treats iron deficiency anemia or helps horses who are rebounding from severe blood loss.
Anemia falls into three categories: you're losing blood, you're not making new blood, you're destroying your own blood. Each of these has many separate causes which I won't get into, but if your horse is anemic and it isn't one of the extremely rare cases of iron deficiency or it hasn't had a massive blood loss then red cell is completely unnecessary. Back when I was in vet school the professors would have a game called "find the most worthless supplement you can waste money on". There were many contenders and always hard to pick a winner!