Glukos Bar 12 Pack. Packed full of all the fuel you need to ride at your best and nothing you don't, Glukos Bars supply the energy you need to take your performance to new heights. Specially formulated for athletes, the Glukos Bar is scientifically designed to help get energy to your muscles faster and with less digestive stress than anything else out there. The proof is in the ingredients. Made with whole foods like dates and cashews, each bar packs a punch of naturally concentrated energy without artificial coloring, high fructose corn syrup, or artificial sweeteners.