Key Nutritional Priorities After 75
Calorie needs may fall to 1,600–2,000 kcal/day, yet micronutrient requirements stay the same or increase. Protein needs remain high at 1.2–1.5g/kg/day. Thirst sensation is significantly reduced — hydration must be proactively managed. Small, frequent, nutrient-dense meals are more practical than three large ones.
Daily Nutrient Targets (75+)
Compared to younger adults, several micronutrient targets increase after 75.
Swallowing Safety — IDDSI Texture Guide
Dysphagia (swallowing difficulty) affects up to 30% of adults over 75. The IDDSI framework provides evidence-based food texture levels for safe eating.
Level 7 — Regular (No Restriction)
Normal foods for those with no swallowing difficulties. Focus on nutrient density and energy per bite to compensate for reduced appetite.
Level 6 — Soft & Bite-Sized
All food pieces max 1.5cm. Soft, moist, and can be mashed with tongue against palate. Suitable for mild chewing difficulty.
Level 5 — Minced & Moist
Food minced to 4mm pieces, moist throughout. No lumps, skin, pith, or bones. Requires minimal chewing. Suitable for moderate dysphagia.
Level 4 — Puréed
Smooth, lump-free, cohesive. No chewing required. Falls off spoon slowly. Suitable for severe dysphagia. Fortify with cream, butter, or protein powder to maintain nutrition.
Fortifying Puréed Foods
Add skimmed milk powder, cream, butter or olive oil to increase energy and protein density. One tablespoon of cream cheese or butter adds 50–100kcal without changing texture.
Anti-Frailty Nutrition
Frailty affects 10–25% of adults over 75. High-protein, leucine-rich foods at every meal are the single most effective dietary strategy against frailty.
Immune Support
Immunosenescence (age-related immune decline) makes infections more dangerous. These nutrients directly support immune function.
Zinc (11mg/day)
- Oysters — 74mg/100g (richest source)
- Beef — 4.8mg/100g
- Pumpkin seeds — 7.5mg/100g
- Cashews — 5.6mg/100g
- Zinc essential for T-cell and NK-cell function
Vitamin C (90mg/day)
- Red bell pepper — 190mg/100g (#1 source)
- Kiwi — 93mg each
- Oranges — 53mg each
- Broccoli — 89mg/100g
- Strawberries — 59mg/100g
Vitamin D (800–2,000 IU)
- Supplement often necessary at 75+ (skin less efficient)
- Fatty fish: salmon 600–1,000 IU/100g
- Fortified dairy and cereals
- Reduces respiratory infection risk by 40%+
- Combined with calcium for bone
Beta-Glucans & Probiotics
- Oats & barley (beta-glucan activates macrophages)
- Mushrooms: shiitake, maitake (beta-glucan)
- Live yogurt (kefir best — diverse strains)
- Sauerkraut, kimchi
- Gut health = immune health (70% of immune system in gut)
Proactive Hydration Strategy
Thirst sensation declines sharply after 75. Dehydration is a leading cause of hospitalisation in older adults. Do not rely on thirst — schedule fluid intake.
Hydration Tips for 75+
Target 1.6–2.0L fluid/day minimum. Soups and stews count. Herbal teas are excellent. Watch for dehydration signs: dark urine, confusion, dry mouth, dizziness. Thirst-based drinking is unreliable — use clocks and routines instead.