When grazing on very dry, dusty or sandy soil, some horses may ingest some of that matter. Although the body can deal with small amounts, if sand and soil become accumulated within the gut, it can create digestive upset. Sand Gard supports healthy movement through the gut (peristalsis) and provides herbal ingredients to naturally â??sweep’ out excesses that have accumulated in the gut. It also provides live probiotic yeasts to support a healthy microflora population within the gut. Sand Gard can be fed regularly for long term maintenance of optimum gut health in horses who may be ingesting sandy soil.