ATP Fuel (150 Capsules)Optimized Energy for Serious Mitochondrial Needs ATP Fuel was formulated to promote healthy mitochondrial membrane function and maximize the Krebs cycle of cellular energy production. The NT Factor Energy portion of this product is our unique phospholipid (i. e. choline, serine and other lipids) delivery system which nurtures the bodys mitochondrial membrane repair process, promoting healthy mitochondrial function and healthier oxidative stress