About Helios Ancient farmers form every sun-bathed Greek island worshiped Helios, god of the sun, and attributed their abundant crops and healthy livestock to his daily journey across the sky. Helios Organic Kefir celebrates its namesake's legacy of good health and wellbeing with every delicious bottle of Kefir we make! About Helios Organic Kefir Kefir is an effervescent cultured milk beverage similar to yogurt that has been popular in Eastern Europe for more than 2000 years. Helios Organic Greek Kefir has an extra boost of protein, plus 12 lives & active probiotic cultures that can help maintian a balanced digestive system.