Zinc and Magnesium are essential minerals with a wide range of functions within your body, making this supplement the ideal companion to support your training. Plus, we've now added Vitamin B6 to our Zinc Magnesium Capsules, great for supporting your immune system and keeping fatigue at bay. How to use: Consume 1 capsule a day. For best results, consume on an empty stomach, 30 to 60 minutes before bedtime.