Can Daily Multivitamins Help Older African Adults Stay Active?

By: Foluke Akinwalere, Health & Medical Writer. DLHA Fellow. Medically reviewed by the DLHA Team.

August 14, 2026

Photo of an elderly African woman taking a multivitamin with a glss of water at hand. Image created from ChatGPT. Click on image to enlarge.

Key Takeaway

• A recent observational research suggests that a daily multivitamin may help some older adults, especially those with heart-related symptoms, feel less fatigued and better able to manage daily activities.

• The research is preliminary and includes mostly a Western population, so results may not automatically apply to populations in sub-Saharan African communities.

• Multivitamins work best as a support, not a substitute for a healthy, balanced diet, physical activity, good sleep, and regular medical checkups.

• Always consult a doctor or pharmacist before starting any new supplement, especially for older adults managing existing health conditions.

Introduction

Across sub-Saharan Africa, more middle-class families are asking the same question: can a simple daily multivitamin actually help older adults stay strong, active, and independent for longer?

A new study, presented at NUTRITION 2026, the annual meeting of the American Society for Nutrition, offers some interesting early answers.

This article breaks down the study, what it found, why the findings matter, and most importantly, what the study means for older adults here in sub-Saharan Africa, where diets, healthcare access, and daily life is quite different from the Western countries where the study was conducted.

About the Study

The study looked at data from the COcoa Supplement was Multivitamin Outcomes Study (COSMOS), a large clinical trial involving more than 16,000 older adults. COSMOS was originally designed to test whether a daily multivitamin (Centrum Silver) or a cocoa extract supplement could lower the risk of cancer, heart disease, and other conditions linked to aging.

For this particular analysis, researchers wanted to know something more personal and practical: not just whether multivitamins prevent disease, but whether they help older adults actually feel and function better in daily life.

Participants were randomly placed into groups; some received a daily multivitamin, some received cocoa extract, some received both, and others received a placebo (a supplement with no active ingredients). After three years, researchers compared how each group scored on a validated health questionnaire that measures symptoms, physical limitations, and quality of life connected to heart health.

What the Study Found

The results were encouraging. After three years, adults aged 60 and above who took the daily multivitamin scored significantly better on measures of functional health compared to those who took the placebo. This means they could do everyday tasks like climbing stairs, dressing, bathing, and moving around the house more easily than those who did not take one.

The biggest improvements were seen in what researchers call “symptom burden", things like tiredness, breathlessness, and swelling in the legs or feet, rather than in raw physical strength alone.

In simple terms, the multivitamin group reported feeling less weighed down by everyday symptoms, which in turn made it easier for them to stay active and manage daily chores and responsibilities.

Interestingly, the cocoa extract supplement tested in the same trial did not show a general benefit for functional health across all participants. However, it appeared to help a smaller group of people already living with congestive heart failure, a finding the researchers say warrants further study.

Why This Happens

So why would a simple multivitamin make such a difference? Researchers point to a few possible explanations. Certain vitamins and minerals may help the body regulate blood pressure, keep blood vessels working well, calm inflammation, support healthy cholesterol, and prevent common nutrient shortfalls such as anaemia.

Put together, these small effects on the body’s circulation and nutrient levels may add up to better energy, fewer symptoms, and, over time, an easier ability to keep moving, working, and living independently.

It’s a reminder that ageing bodies often absorb and use nutrients less efficiently than younger ones, even when a person is eating reasonably well. A multivitamin, in that sense, may act like a small safety net, filling in nutritional gaps rather than replacing good food altogether.

Related: Vitamin Supplements, Are They Necessary To Take?

Limitations of the Study

As encouraging as the study findings sound, there are important limits to keep in mind before rushing to the pharmacy.

• First, the study has not been peer-reviewed, so its conclusions are still preliminary. 

• Second, the trial was conducted mostly among older adults in the United States, using a specific commercial multivitamin brand, not necessarily the products commonly sold in sub-Saharan African pharmacies, which can vary widely in formulation and dosage. 

• Thirdly, the study did not examine or establish any cause-and-effect relationship behind the improvement; it simply observed that they occurred.

• Finally, and perhaps most importantly, the study’s lead author, Dr. Bayu Bekele of the Georgia Prevention Institute at Augusta University in the United States, was careful to stress that a multivitamin is not a replacement for a balanced diet, regular exercise, adequate sleep, and proper medical care. As he put it, the research centers on “how people actually feel and function in their daily lives,” rather than simply preventing major disease. In his view, a daily multivitamin is best seen as a helpful, low-risk addition to a healthy lifestyle, not a stand-in for food and regular exercise.

What the Study Means for Africans

For many older adults across the African continent, this research raises useful questions rather than offering a one-size-fits-all answer.

On one hand, many African diets, when balanced with local staples like leafy vegetables, beans, fish, and fruits, already provide a wide range of essential nutrients. Traditional African meals can be rich in fibre, plant protein, and micronutrients when prepared with variety. This means a multivitamin should never be seen as a shortcut around good home cooking.

On the other hand, real nutritional gaps do exist for many older Africans, due to reduced appetite in old age, chronic conditions like diabetes or hypertension that limit food choices, financial constraints, or simply less varied diets in some communities. For individuals facing such nutritional gaps, especially those managing heart-related conditions or diagnosed with vitamin and nutrient deficiencies, a doctor-guided multivitamin prescription could offer a low-risk addition to their care plan.

It is also worth remembering that access to multivitamins, their cost, and their quality can differ significantly between countries and even between cities and rural areas within sub-Saharan Africa. In many communities, a bottle of multivitamins can be an added expense that competes with other household priorities, so it should be a deliberate, informed choice rather than an automatic purchase. Counterfeit or poorly regulated supplements are also a real concern in some local markets, which makes buying from reputable pharmacies and checking for proper regulatory approval especially important.

Culturally, many African households already lean heavily on home remedies, herbal preparations, and food-based traditions to care for their elders. A multivitamin does not need to replace these practices; instead, families can view it as one more tool in a wider toolbox that includes traditional wisdom, modern medicine, and community support. Open conversations between older adults, their children, and their doctors, rather than self-medicating based on advertisement or word of mouth, remain the safest way forward.

Before starting any supplement, older adults and the family members who care for them should speak with a qualified healthcare provider, particularly if they are managing conditions like high blood pressure, diabetes, or kidney disease, or taking other medications that could interact with vitamins or minerals.

Conclusion

The question many sub-Saharan African families are quietly asking deserves an honest, balanced answer. This new study offers a hopeful signal that a daily multivitamin could help some older adults feel stronger, and more able to enjoy their independence. But it is not a magic pill, and it is certainly not a replacement for the fundamentals of healthy ageing: eating well, staying physically active, having sufficient quality sleep, and getting regular medical checkups.

For older adults in sub-Saharan Africa, the safest path forward is simple: keep eating a varied, nutrient-rich diet rooted in local foods, stay as physically active as your body allows, and talk to a trusted healthcare provider about whether a multivitamin makes sense for your specific health needs. Healthy ageing is rarely about one single solution; it is about small, consistent habits working together, and a multivitamin may simply be one small piece of that much bigger picture.

Note that this research has not yet been published in a peer-reviewed medical journal. That makes it a preliminary study, meaning the results are promising but not yet the final word. The study needs to be published, peer reviewed and validated through repeat of the findings before doctors can confidently recommend multivitamins purely on its claims.

This article is for general health education purposes and is not a substitute for professional medical advice. Please consult a qualified healthcare provider before starting any new supplement, especially if you are managing a chronic health condition.

Source: 

Dong Y, Bekele B, Zhu H, Manson HE, et al. (OR19-02-26) Multivitamin-Mineral Supplementation Modestly Improves Cardiovascular-Related Functional Health Status in Older Adults: Secondary Findings From the COSMOS Trial. Oral presentation. Gaylord National Resort & Convention Center. Monday, July 27, 2026. [Accessed August 10, 2026]. Abstract available here.

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