Dr. Rick's Insights

ENROUTE Surgical Nutrition vs. PureClean Performance: Which Is Better for Pre- and Post-Surgery Nutrition? Founded by Dr. Rick Cohen, M.D. | Physician, Biomedical Engineer | Updated September 2026 Disclosure: Dr. Rick Cohen, M.D. founded PureClean Performance and formulator of its products. This is therefore not an independent product review. It is our clinical and nutritional analysis of two different approaches to perioperative nutrition, with links to the underlying research so you can evaluate the evidence yourself. If your surgeon sent you a link to ENROUTE Surgical Nutrition before an orthopedic procedure, you may have had the same reaction many patients...

A vegan athlete can eat an excellent diet. They can get enough calories, plenty of protein, train intelligently and perform at an extraordinarily high level. They can believe they get "enough" protein But none of that changes the amino math. Protein is not simply protein. What ultimately matters is the essential amino acids that protein delivers, how much of them are present, how well they are digested and absorbed, and whether enough are available when the body is trying to recover and adapt. That is where plant-based athletes operate with a smaller margin for error. Many gradually slip into a...

There is a Pattern Hidden in Plain Sight Nature is the most beautiful and truth teacher of all, if you just know where to look and listen. If a biological system with intact structure requires permanent external control to function, it is not healing. It is compensating for unresolved regulatory failure. This distinction exposes the deepest flaw in modern medicine: the inability to distinguish restoration from compensation. Music works because you simply listen.Your nervous system entrains automatically.You do not “try” to synchronize. The pattern is supplied, and the system organizes around it with minimal internal cost. That is what health...

Here's the mechanism nobody in the supplement industry will explain to you when supplements, especially nitric oxide supplements, stop working.  PureClean Performance  ·  Science & Performance  ·  10 min read Nitric oxide is one of the most important molecules in the human body. It relaxes blood vessel walls, improves blood flow, regulates blood pressure, supports immune function, and plays a critical role in how your cells communicate. When it's working, you feel it — better circulation, lower blood pressure, faster recovery, more energy, better sexual function. Which is why the nitric oxide supplement category exists. Arginine, citrulline, beetroot juice and...