Open Farm Dog Supplement Probiotic Chews 90 ctOpen Farm Soft Chew Supplements are specifically designed to cater to the needs of dogs at all stages of life. Comprised of 100% human grade, non GMO and fully traceable ingredients, the veterinarian approved, NASC certified supplements are made in the USA and come in multiple formulas. The Probiotic formula helps promote healthy digestion and gut health, supports normal gut flora and bowel movements, and helps support healthy immune function.