Can Multivitamins Help Older Adults Manage High Blood Pressure?

A new study has examined whether daily multivitamins could help lower high blood pressure in older adults with poor diets. Published in the American Journal of Hypertension, the research suggests small benefits for certain groups, though no broad impact was found. With over 1.4 billion people globally affected by hypertension, the findings add to ongoing discussions about managing this major health risk.

The study focused on older adults whose diets lacked essential nutrients. While multivitamins showed no significant effect on overall blood pressure levels, a slight improvement appeared in those with normal blood pressure at the start and lower dietary quality. Researchers noted that specific nutrients—such as potassium, magnesium, calcium, and fibre—play a role in blood pressure regulation when consumed through a balanced diet.

Over a third of adults in the U.S. and Europe regularly take multivitamins to fill nutritional gaps. However, the study did not identify any researchers by name. The findings highlight that long-term multivitamin use might offer some protection against high blood pressure, but only for individuals with existing nutrient deficiencies.

Hypertension remains the world's leading risk factor for death, contributing to nearly half of all heart disease and stroke fatalities. Modifiable factors like diet, exercise, weight control, and stress reduction are already known to influence blood pressure. Yet, the study underscores the need for further research into how supplements interact with dietary habits and biological outcomes.

The research provides limited evidence that multivitamins could aid blood pressure control in older adults with poor diets. No broad benefits were confirmed, leaving diet and lifestyle changes as the primary tools for managing hypertension. Scientists have called for more studies to clarify the relationship between supplements, nutrition, and long-term health effects.