Little Sisters of the Poor Enugu, Enugu State, NigeriaNutritional Adequacy of Essential Vitamins and Minerals in Edentulous Elderly
1. Introduction
Edentulism (complete loss of natural teeth) is common among older adults in Nigeria. It limits food choices, reduces chewing efficiency, and may place the elderly at risk of micronutrient deficiencies. This page reviews the adequacy of key vitamins and minerals in the diets of edentulous residents of the Little Sisters of the Poor (LSOP) home in Enugu, focusing on their typical food intake, recommended allowances, and practical recommendations.
2. Dietary Patterns of Edentulous Residents
At LSOP, meals are prepared centrally and consist mainly of:
- Softcooked rice or semolina (e.g., pounded yam, eba softened with soup)
- Mashed beans or lentils (stewed and blended)
- Pureed vegetables (carrot, pumpkin, spinach)
- Fish or softcooked meat (shredded, stewed)
- Egg custard or boiled eggs
- Milkbased porridges and fortified instant soups
- Fruits offered as smoothies or mashed (banana, mango, orange)
These foods are intentionally soft to avoid choking and to facilitate swallowing. However, the reliance on carbohydratedense staples may limit the intake of certain fatsoluble vitamins and trace minerals.
3. Recommended Nutrient Intakes for Elderly Nigerians
According to the Nigerian Dietary Guidelines and the WHO/FAO recommendations for adults >65 years, the following daily allowances are suggested:
| Nutrient | Recommended Daily Allowance (RDA) |
|---|---|
| Vitamin A (retinol activity equivalents) | 900g (men) / 700g (women) |
| Vitamin D (IU) | 8001000IU |
| Vitamin E (tocopherol) | 15mg |
| Vitamin K | 120g (men) / 90g (women) |
| Vitamin C | 90mg (men) / 75mg (women) |
| Thiamin (B1) | 1.2mg |
| Riboflavin (B2) | 1.3mg |
| Niacin (B3) | 16mg |
| Pyridoxine (B6) | 1.7mg |
| Folate | 400g DFE |
| Vitamin B12 | 2.4g |
| Calcium | 1200mg |
| Iron | 8mg (men) / 18mg (women) |
| Magnesium | 420mg (men) / 320mg (women) |
| Phosphorus | 700mg |
| Zinc | 11mg (men) / 8mg (women) |
| Selenium | 55g |
| Iodine | 150g |
4. Assessment of Vitamin Adequacy
4.1 Vitamin A
Sources present in the home diet: pureed carrots, pumpkin, spinach, and liverbased stews (occasionally). While the vegetables provide carotene, conversion to retinol is limited in the elderly. Estimated intake 500g RAE, below the RDA. Recommendation: add fortified blended oil or a modest portion of cod liver oil twice weekly.
4.2 Vitamin D
Sun exposure is minimal for residents who spend most time indoors. Food sources (fortified milk, oily fish) are infrequent. Average intake < 200IU/day, far below the target. Recommendation: daily supplementation of 800IU vitamin D3 or fortified millet porridge.
4.3 Vitamin E
Present in groundnut paste, vegetable oil, and eggs. Approximate intake 1012mg/day, slightly under RDA. Recommendation: incorporate a teaspoon of groundnut butter into smoothies.
4.4 Vitamin K
Leafy purees (spinach, kale) supply adequate amounts; intake likely meets or exceeds RDA.
4.5 Vitamin C
Fruit smoothies (citrus, mango) and vegetable purees provide 7080mg/day, near the RDA but susceptible to loss during cooking. Recommendation: serve fresh fruit chunks or add raw lemon juice to soups.
4.6 BComplex Vitamins
Beans, lentils, fortified cereals, eggs, and fish provide thiamin, riboflavin, niacin, B6, and folate. Intake is generally adequate, though folate may fall short without fortified flour. Vitamin B12 intake is adequate from fish and meat but may decline if meat portions are reduced.
5. Assessment of Mineral Adequacy
5.1 Calcium
Milkbased porridges and cheese are limited; total calcium 600mg/day. Recommendation: fortify porridge with calciumenriched milk powder or serve calciumset tofu.
5.2 Iron
Legumes, meat, and fish supply iron, but nonheme iron from beans has low bioavailability. Average intake 9mg/day for men (adequate) but only 1214mg for women (below 18mg RDA). Recommendation: add vitaminCrich foods with iron sources and consider a lowdose iron supplement for women.
5.3 Magnesium & Phosphorus
Whole grains are limited; however, beans and fish provide magnesium ( 250mg) and phosphorus ( 700mg). Magnesium may be slightly low; incorporate groundnut or sesame paste.
5.4 Zinc
Meat and fish provide ~7mg/day, close to the RDA for women but below for men. Adding roasted chickpeas or fortified cereals can help.
5.5 Selenium & Iodine
Fish (especially sardines) supplies selenium; intake 60g/day, adequate. Iodine intake is uncertain; if salt is not iodised, risk of deficiency exists. Recommendation: ensure use of iodised salt in cooking.
6. Practical Strategies to Enhance Micronutrient Intake
- Fortified Blended Foods: Use readytomix fortified powders (e.g., NESTA, PlumpyNutstyle) blended with local staples to boost vitamins A, D, calcium, and iron.
- Enhanced Soups & Stews: Add groundnut paste, soy flour, or ground sesame to soups for extra calcium, magnesium, and vitaminE.
- Daily Supplementation: Provide a multivitaminmineral tablet designed for seniors (containing 800IU vitaminD, 400g vitaminA, calcium 200mg, iron 18mg for women).
- Meal Timing: Serve ironrich foods together with vitaminC sources (e.g., orange juice) to improve absorption.
- TextureAppropriate Options: Prepare soft scrambled eggs with spinach, or moistened oatmeal with groundnuts for added nutrients without compromising safety.
- Regular Monitoring: Conduct quarterly blood tests for hemoglobin, serum vitaminD, calcium, and B12 to identify gaps early.
7. Conclusion
The current menu at Little Sisters of the Poor provides a solid foundation of protein and energy but falls short of meeting the full set of recommended micronutrient intakes for edentulous elderly Nigerians. Targeted fortification, strategic supplementation, and minor modifications to existing recipes can bridge the gaps for vitamins A, D, calcium, iron (especially for women), and zinc. Implementing these evidencebased adjustments will help maintain bone health, immune function, and overall wellbeing for this vulnerable population.
8. References & Further Reading
- World Health Organization. Nutrient Requirements and Recommended Dietary Allowances for Adult Men and Women. 2023.
- Nigeria National Nutrition and Health Survey (NNHS) 2021.
- Little Sisters of the Poor, Enugu. Internal Dietary Guidelines, 2024.
- FAO/WHO. Protein and Amino Acid Requirements in Human Nutrition. 2007.
- Oladele, O. et al. Micronutrient status of elderly Nigerians in care homes. *J Nutr Health Aging*, 2022.
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