Excellent product! All I can say is that I feel good! I take my vitamins in the morning with my breakfast, and again with my dinner. I wake up feeling energized to exercise and that's perfect for me. I recommend it to everyone I know as a quality product. Another point of appreciation for me is that you can go directly to the website at www.peakperformancepack.com to learn about all the wonderful benefits the peak performance packs add to your health and well-being. I believe they are truly premium vitamins that benefit the body in limitless ways. My husband had a heart attack three years ago, and takes the Peak Performance Heart packs and rarely complains any about constant fatigue. He says he feels more energy and less sleepy at work since he stands on his feet all day.