Underfeeding can increase the maximum lifespan, Be careful since what works for rats might not work for people.
The standard of care in the PICU should be the assessment of each patient's energy needs and the supply of optimal energy. In the PICU, both underfeeding and overfeeding are frequent, with the resulting nutritional excesses or deficiencies being linked to problems.
4,29 A number of studies have shown inconsistencies between observed and equation-estimated energy expenditure, suggesting that it may be difficult to predict the true energy consumption during acute sickness. 30–32 A drop in weight, the loss of vital lean body mass, and a worsening of current malnutrition will result from cumulative energy deficits if increased energy requirements during the acute stage of diseases are not accurately evaluated and met by adequate intake.
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