Foundations of Geriatric Nutrition
Expert-defined terms from the Professional Certificate in Geriatric Nutrition (United Kingdom) course at LearnUNI. Free to read, free to share, paired with a professional course.
Anaemia – reduced haemoglobin concentration affecting oxygen delivery; re… #
Example: an older adult with fatigue and pallor may have iron‑deficiency anaemia. Practical application includes dietary iron optimisation and supplementation; challenges involve distinguishing chronic disease anaemia from true deficiency.
Atypical presentation – non‑classical symptoms of disease in older adults… #
For example, a senior may present with confusion rather than chest pain during a cardiac event. Clinicians must maintain high suspicion, but diagnostic ambiguity often delays treatment.
Body Mass Index (BMI) – weight (kg) divided by height squared (m²); relat… #
A BMI <18.5 suggests undernutrition, while >30 indicates obesity. BMI is simple to use, yet it does not differentiate muscle from fat, limiting its utility in sarcopenic obesity.
Cachexia – complex metabolic syndrome with loss of lean body mass; relate… #
Unlike simple starvation, cachexia involves catabolism driven by disease. Nutritional interventions combine high‑protein formulas with anti‑inflammatory agents, yet reversal is often limited.
Carnitine – nutrient facilitating fatty acid transport into mitochondria;… #
Deficiency may exacerbate fatigue in frail elders. Supplementation is sometimes trialled, but evidence of benefit is mixed and cost can be prohibitive.
Chronic Obstructive Pulmonary Disease (COPD) – progressive lung disease;… #
Increased protein (1.2–1.5 g/kg) supports respiratory muscles. Nutritional support improves outcomes, but dyspnoea during meals can limit intake.
Clinical Frailty Scale (CFS) – tool rating frailty from 1 (very fit) to 9… #
Higher CFS scores correlate with increased nutrition risk. Using CFS guides intervention intensity, but inter‑rater variability may affect reliability.
Compensated Malnutrition – state where body reserves mask nutritional def… #
Patients may maintain weight yet have micronutrient deficiencies. Routine laboratory screening (e.g., serum zinc) uncovers hidden deficits, yet cost and accessibility limit widespread testing.
Concentration of Micronutrients – levels of vitamins/minerals in food; re… #
Older adults often require higher intakes due to reduced absorption. Fortified cereals provide B‑vitamins; however, excessive supplementation risks toxicity.
Energy Requirements – calories needed for maintenance and activity; relat… #
Calculated using BMR plus activity factor (1.2–1.4 for sedentary elders). Over‑estimation leads to weight gain; under‑estimation exacerbates loss.
Hand‑Held Micronutrient Analyzer – portable device for rapid nutrient tes… #
Emerging technology may allow on‑site assessment of vitamin D or iron status. Cost and validation remain obstacles.
Inflammaging – chronic low‑grade inflammation associated with ageing; rel… #
Elevated C‑reactive protein correlates with muscle loss. Anti‑inflammatory dietary patterns (rich in omega‑3s, antioxidants) aim to mitigate this process; effectiveness varies with individual genetics.
Malnutrition Screening Tool (MST) – quick questionnaire for nutrition ris… #
MST asks about recent weight loss and appetite. High scores trigger comprehensive assessment. False negatives occur if patients under‑report weight loss.
Meal Fortification – adding nutrient‑dense ingredients to regular meals;… #
Mixing yoghurt with whey protein or adding avocado to soups enhances intake without increasing volume. Taste acceptance varies; trial and feedback improve success.
Mild Cognitive Impairment (MCI) – early stage of cognitive decline; relat… #
Mediterranean‑type diets rich in antioxidants may delay progression. Nutritional counseling must consider memory deficits that affect meal preparation.
Muscle Protein Synthesis (MPS) – process of building muscle proteins; rel… #
Adequate leucine (~2.5 g per meal) triggers MPS. Timing protein intake around resistance exercise maximises response; older adults may have blunted MPS, requiring higher protein doses.
Pattycoccus – typo; ignore #
Pattycoccus – typo; ignore.
Protein‑Energy Malnutrition (PEM) – combined deficiency of protein and ca… #
PEM manifests as muscle wasting, edema, and immune compromise. Management includes high‑protein, energy‑dense ONS and gradual re‑feeding to prevent re‑feeding syndrome.
Protein‑Therapy – systematic use of protein to treat malnutrition; relate… #
Evidence shows improved wound healing and reduced infection rates with high‑protein diets. Monitoring for over‑hydration in heart failure patients is necessary.
Protein‑Weight – not relevant; skip #
Protein‑Weight – not relevant; skip.
Protein‑Supplementation Timing – optimal schedule for supplements; relate… #
Providing ONS within 30 minutes after activity maximises MPS. Night‑time protein may reduce overnight catabolism, yet risk of reflux must be evaluated.
Protein‑Sarcopenia Link – relationship between protein and muscle loss; r… #
Adequate protein mitigates sarcopenia progression. Even with optimal intake, severe inactivity may still lead to loss, highlighting need for combined exercise.
Protein‑Energy Balance – equilibrium between intake and expenditure; rela… #
Maintaining balance prevents unintended weight loss. Monitoring weight weekly and adjusting intake accordingly is practical; metabolic fluctuations during illness require flexibility.