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Ultra Running under-eating with AI
1. Persistent fatigue that doesn’t match your training
It’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 training
If 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 injuries
Low 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 disruptions
In 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 appetite
You 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 deficits.
https://teamrunrun.com/coach/josh-sain-raleigh-running-coach/
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By Josh Sain1. Persistent fatigue that doesn’t match your training
It’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 training
If 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 injuries
Low 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 disruptions
In 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 appetite
You 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 deficits.
https://teamrunrun.com/coach/josh-sain-raleigh-running-coach/