A long-standing myth has burst like a soap bubble. It doesn't protect against stroke at all.

Authors: PAP ; Prepared by KKR • Source: PAP, jamanetwork.com • Published: September 4, 2025 16:56 • Updated: September 4, 2025 16:56
Multivitamins don't prolong life, confirms the largest study of its kind. Nearly 400,000 people were followed for 20 years and found no reduced risk of cancer, heart attacks, or strokes.
- More than 390,000 healthy adults in the U.S. were followed for 20 years to determine the impact of multivitamins on health and lifespan.
- The study took into account demographic and lifestyle factors, which allowed for more accurate results than before
- Taking a daily multivitamin did not reduce the risk of death from any cause, including cancer, heart disease, or stroke.
- Scientists emphasize that further research is needed among older people and those with nutrient deficiencies.
In the USA and many other Western countries, a large group of adults regularly take multivitamin preparations with the hope of improving their health and, consequently, extending their lifespan.
As scientists from the American National Cancer Institute point out, research conducted on this subject so far has yielded ambiguous results.
To look at these relationships in more detail, the researchers analyzed data from large studies of residents in different parts of the United States.
These projects involved a total of over 390,000 healthy adults who were followed for over 20 years.
This study took into account numerous demographic and lifestyle factors that could have influenced the results, yielding more accurate results than previous studies.
It turned out that people taking daily multivitamins did not reduce their risk of death from any cause. There were also no differences in deaths from cancer, heart disease, or cerebrovascular disease.
Researchers also emphasize the need to study the impact of multivitamins on the health and risk of death of people from various populations, for example those with deficiencies of important nutrients in their diet or in the elderly.
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