FEED YOUR PASSION BLOG – Page 2 – myspringenergy

The Bacteria That Thrive After a Hard Run

by Rafal Nazarewicz Ph.D. There's a class of bacteria living in the guts of elite marathon runners that most athletes have never heard of. It doesn't help you absorb carbs. It doesn't calm inflammation. It does something stranger and...

The Missing Layer in Your Fueling Stack: What Soluble Fiber Actually Does for Endurance Athletes

Most athletes spend real time thinking about carbohydrate timing, protein intake, and hydration strategy. Do we think enough about one fraction of carbohydrate, fiber? And that gap is costing them performance they can't see. Not because fiber is some new...

What Sports Nutrition May Get Wrong About Glycemic Index

🎧 Listen: What Sports Nutrition May Get Wrong About Glycemic Index Rafal Nazarewicz Ph.D. The spike-and-crash story is only a fraction of it. At the intersection of blood sugar, gut blood flow, and intestinal physiology, the real picture is far...

Food First: Why Prebiotics Matter More Than Probiotic Pills

The Uncomfortable Truth About Your Gut - Prebiotics vs Probiotics By Rafal Nazarewicz, PhD The Uncomfortable Truth About Your Gut You can take all the probiotic supplements in the world, but if you're fueling your body with ultra-processed foods (UPFs),...

Sports nutrition is not just about fueling muscles.

By Rafal Nazarewicz. Ph.D. Athletes usually think about the gut in practical terms: absorption, tolerance, and bathroom risk on race day. Calories in, watts out. However, physiology reveals a more complex narrative. Your gut is not just a digestive tube. It...