Our exclusively sourced bars are packed with high-quality, undenatured whey protein from cows that are pasture-fed and not treated with hormones or antibiotics. The whey protein is low in lactose and high in branch-chained amino acids for maintaining muscle and promoting muscle growth. IsaBars are packed with premium nutrition that includes a balanced ratio of high-quality protein, healthy fats and energy-boosting carbohydrates. This is a balanced meal alternative that reduces cravings and keeps you satisfied for hours.