Quest Protein Bar — High Protein, High Fibre, Low Sugar Quest Bars deliver 20-21g of protein and 13-14g of fibre per bar with only 1g of sugar and no added sugars. A clean macro profile built for anyone tracking their nutrition seriously. Buy Quest Bars in Canada at Anthem Supplements. Key Benefits 20-21g Protein Per Bar: Complete protein from milk protein isolate and whey protein isolate to fuel muscle recovery. 13-14g Fibre: One of the highest-fibre protein bars on the market, supporting digestive health and keeping you satiated. Gluten-Free & Soy-Free: No gluten, no soy, no added sugars. Sweetened with stevia and sucralose at only 190 calories per bar. How to Enjoy Great as a meal replacement on busy days, a post-workout snack, or a mid-afternoon hunger fix. Store at room temperature. Try warming in the microwave for 15 seconds for a soft, cookie-like texture.