CLIF Bar Bloks Energy Chews - 60g Bars - (10 Pack)CLIF BLOKS Energy Chews are semi solid, easy to chew sources of carbohydratesyour body's preferred source of fuel during activity. They 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. Half a packet of CLIF BLOKS can be eaten 15 minutes prior to activity to increase blood sugar levels,