Dr. Rick's Insights

Continuous glucose monitors may be useful—but not for the reason most people think. The biggest mistake we made with continuous glucose monitors was assuming they were food judges. We strapped on a sensor, ate a meal, watched the glucose curve rise or fall, and then made a simple conclusion: “This food is good for me.”“This food is bad for me.”“This spike means I should avoid that.”“This number or graph means I should fuel now.” That was too simplistic. The problem is not that glucose does not matter. It does. The problem is that glucose is not an isolated endpoint. It...

You have two beets. Both organic. Both similar size and weight. Both go through the same processing. But in the end, not all beet powders work the same. This is because not all deliver the same amount of dietary nitrate, and in a natural way, we might add, too. A label can tell you how many grams of beet powder are in a serving, but that alone does not tell you how much nitrate you are actually consuming. For nitric-oxide support, the more useful number is the nitrate concentration of the beet ingredient and the resulting nitrate dose per serving....

When the Body Forgets How to Remember: The Unified Theory Medicine Proved Then Ignored The Mystery That Isn't Why does a song from 1987 instantly transport you back to your grandmother's kitchen? Why does the smell of diesel fuel make you feel seventeen again, sitting in your first car? The standard explanation is anatomical hand-waving: "Smell and music are processed in the limbic system, close to the hippocampus and amygdala where memory and emotion are stored." That's not an explanation. That's like saying "cars move because wheels are connected to the engine." True, but useless. Here's what's actually happening—and once...

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...