Ultra Running under-eating with AI

1. Persistent fatigue that doesn’t match your trainingIt’s normal to feel tired during heavy blocks, but if you’re constantly drained—even on easy days or after rest—it can point to low energy availability. Your body simply doesn’t have enough fuel to recover.2. Declining performance despite consistent trainingIf your pace is slowing, long runs feel harder than they should, or you’re not adapting to training, underfueling might be the culprit. Without enough calories, your body can’t rebuild stronger.3. Frequent illness or lingering injuriesLow energy intake weakens immune function and slows tissue repair. Repeated colds, nagging injuries, or things like stress fractures can be tied to chronic under-eating.4. Hormonal disruptionsIn endurance athletes, this can show up as missed or irregular periods (linked to Relative Energy Deficiency in Sport), low libido, or other hormonal imbalances. It’s a serious sign your body is conserving energy for survival rather than performance.5. Constant hunger or, paradoxically, loss of appetiteYou might feel ravenous all the time—or the opposite, where your hunger cues become blunted. Both can happen when your body is out of sync from long-term calorie [email protected]://teamrunrun.com/coach/josh-sain-raleigh-running-coach/