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In medical circles, wasting refers to the process by which a debilitating disease causes muscle and fat tissue to "waste" away. Wasting is sometimes referred to as "acute malnutrition" because it is believed that episodes of wasting have a short duration, in contrast to stunting, which is regarded as chronic malnutrition.
Additional recommended knowledge
Wasting can be caused by an extremely low energy intake (e.g., caused by famine), nutrient losses due to infection, or a combination of low intake and high loss. Infections associated with wasting include tuberculosis, chronic diarrhea, and AIDS. The mechanism may involve cachectin - also called tumor necrosis factor, a macrophage-secreted cytokine. Caretakers and health providers sometimes contribute to wasting by putting the patient on a very restrictive diet. Voluntary weight loss and eating disorders are excluded as causes of wasting.
Cutoff points may vary, but <80% (close to -2 Z-score) is often used.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Wasting". A list of authors is available in Wikipedia.|