NAT B 30s is a dietary supplement that typically contains a combination of B vitamins, which are essential for energy production, metabolism, and maintaining a healthy nervous system. B vitamins, such as B1 (thiamine), B6 (pyridoxine), B12 (cobalamin), and others, help support overall vitality, reduce fatigue, and improve cognitive function. NAT B 30s is commonly used to boost energy levels and promote general well-being.