Are there artificial colors, flavors or sweeteners in OLLY Bars? OLLY October 25, 2019 14:42 Updated Follow No, we only use colors, flavors and sweeteners derived from natural sources. Related articles Is OLLY protein powder vegan? What type of protein in used in OLLY protein powder? Is this product vegetarian? What are the protein sources in OLLY Bars? Have the Essential Prenatal Ultra Softgels been recalled? Comments 0 comments Article is closed for comments.