50% less fat than regular spreadable butter. 40% less calories than regular spreadable butter. Churned fresh daily since 1911. From cows not treated with rBST (no significant difference has been shown between milk derived from rBST treated and non-rBST treated cows). Spread. Spreadable challenge lite butter with canola oil is made with 100% pure, real challenge butter blended with canola oil so that it tastes great and spreads silky smooth even when cold. With less the fat and calories of regular spreadable butter, it's challenge spreadable butter with a real difference. www.challengedairy.com.