I swallowed an energy gel 40 minutes before every session just to be sure I had fuel: from the very first minutes, I understood what my heavy legs were really reacting to
You’ve been fueling correctly, but at exactly the wrong time. A sports dietitian’s insight reveals how a 40-minute pre-workout energy gel triggers a blood sugar crash that feels identical to running on empty—even though your glycogen stores are full. The fix is counterintuitively simple.