Train hard to the tune of sweet flavoured bites with the easy-to-chew carbohydrates in CLIF BLOKS. Supplementary sports food with carbohydrates and potassium Made with 95% organic ingredients Easy-to-chew Simple-to-handle Who needs CLIF Blocks CLIF BLOKS are primarily used by performance athletes – cyclists, runners, mountain bikers, triathletes, adventure racers, etc. However, any performance-oriented athlete needing a quick burst of energy can benefit from CLIF BLOKS. What are CLIF Blocks CLIF BLOKS Energy Chews are semi-solid, easy-to-chew sources of carbohydrates—your body's preferred source of fuel during activity. When should you eat CLIF Blocks Half a packet of CLIF BLOKS can be eaten 15 minutes prior to activity to increase blood sugar levels, followed by 1-2 packets per hour during activity. Consumption of CLIF BLOKS should always be followed with a mouthful of water.