Life Extension D-Ribose Tablets, plus calcium, helps maintain healthy energy levels in heart and muscle, encourages the production of ATP, gluten-free, non-GMO, vegan, 100 vegetarian tablets

I have noticed an increase in my energy level since taking this. Also, Dr. S. Sinatra highly recommends this for heart health as it helps to re-synthesize and regenerate ATP. I'm lucky that I dont have any trouble swallowing pills as this is a bit large. It does come in a powder form.

D-ribose is a sugar-like molecule that your body uses to make adenosine triphosphate, or ATP. ATP is the body's most basic form of energy and the fuel burned by the cellular mitochondria. Our cells naturally produce D-ribose, but the process is slow and different organs produce different amounts. The liver, adrenal glands, and fat tissue are high producers; the heart, brain, nerve tissues, and muscles, on the other hand, produce only enough to meet their daily needs. The heart produces just enough D-ribose to maintain itself—under ideal circumstances. When conditions are less than perfect, such as when the heart doesn't consistently get enough blood or oxygen, production slows. That means ATP production slows, too. This dynamic is risky for heart patients because low oxygen levels and sluggish blood flow are common with cardiovascular disease—so these patients are uniquely prone to having low D-ribose and ATP levels. Having an acute ischemic event is even more problematic. In addition to rapidly and substantially depleting D-ribose and ATP, these events further draw down the heart's energy reserves as the body repairs damaged tissue. In all scenarios, a vicious cycle can emerge: The heart begins to fail because its energy levels are low, but it can't produce more energy because it's failing. #sweepstakes