With the Optavia program, you'll be consuming several “fuelings” per day. Each fueling is a bar or shake that's perfectly portioned to make it easy to stay on track with your eating plan.While these fuelings are cleverly formulated to provide your body with all the nutrients it needs, they can get a little boring after a while. So we're here to help you find some alternatives for Optavia bars that are just as tasty and nutritious!