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Nutrition gériatrique

Nutritional Frailty

A condition of reduced physical resilience in elderly people resulting from nutritional insufficiency and increased susceptibility to illness.

Definition

A state of reduced physiological reserve and increased vulnerability to adverse health outcomes, directly caused or worsened by inadequate nutrition. It is characterized by weakness, reduced muscle mass, and impaired functional capacity in elderly individuals.

How it works

Nutritional frailty develops when elderly individuals do not consume adequate protein, calories, vitamins, and minerals to maintain muscle mass and physiological function. Multiple factors contribute to this condition: reduced appetite from chronic diseases, difficulty chewing or swallowing, social isolation affecting meal preparation, limited access to nutritious foods, and medication side effects. Nutritionally frail seniors experience progressive muscle wasting (sarcopenia), decreased strength, slower walking speed, and reduced ability to recover from illness or injury. This creates a vicious cycle where malnutrition leads to weakness, which further reduces the ability to obtain and prepare adequate nutrition.

Role

Identifies individuals at high risk for disease, disability, and mortality, guiding early nutritional intervention to prevent further decline.

Examples

  • Unintentional weight loss of 5% or more
  • Low serum albumin levels
  • Reduced handgrip strength
  • Slow gait speed
  • Loss of appetite and reduced food intake

Recommendations

Implement early nutritional interventions including protein supplementation, micronutrient fortification, and small frequent meals. Involve social support systems to ensure adequate meal access and preparation. Regular monitoring and reassessment are essential to detect improvements or further decline.

Key takeaway

Early recognition and nutritional intervention in frail seniors can prevent functional decline and improve quality of life.

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