05/29/2026
Half of all horses in developed countries are now overweight or obese. That statistic would have been unthinkable 50 years ago. Horses are grazing animals built to eat grass and hay. That hasn’t changed. What has changed is what’s in the feed bag. Corn. Soy. Wheat. Beet pulp. All heavily contaminated with glyphosate — a chemical known to disrupt the hormones that control how the body stores fat and damage the gut bacteria that regulate metabolism. In our feed store we see this every week. An owner doing everything right — managing portions, limiting pasture — and their horse is still gaining weight. We always ask the same question. What are you feeding?
Sources: Kentucky Equine Research · Wyse et al. (2008) · Stephenson et al. (2011) · Thatcher et al. (2012)