In a recent article we summarized the 100+ year history of multivitamins, and the foundational research that established multivitamin benefits. But when it comes to multivitamin supplementing, the research doesn't end with the foundational studies. New research substantiating the benefits accrue almost monthly. Here are three studies, conducted in just the past year, that highlight the diverse range of benefits. Study 1 - Protection for MASLD patients Metabolic dysfunction refers to a situation where the body's metabolic processes are not functioning optimally. This can include issues with how the body converts food into energy, how it stores energy, and how it regulates hormones and other biochemical pathways. Metabolic dysfunction-associated steatotic liver disease, or MASLD, is one of the deadly consequences of chronic metabolic dysfunction. In a March 2025 study published in Scientific Reports, researchers reported there was a significant association between multivitamin use and a lower risk of all-cause mortality in MASLD study subjects. After adjusting for various confounders, users had a 6% lower risk of death from any cause compared to non-users. The most pronounced benefits were seen in related metabolic systems. Multivitamin users with MASLD showed a 28% lower risk of cardio-cerebrovascular disease PLUS a 27% lower risk of chronic kidney disease. Cardio-cerebrovascular disease refers to conditions that affect both the heart (cardiovascular) and the brain (cerebrovascular) often leading to serious health issues like heart attacks and strokes. Study 2 - Nutrient support for irritable teenagers For parents dealing with an irritable teenager, a study published in the Journal of the American Academy of Child & Adolescent Psychiatry in January 2026 concluded that a multivitamin supplement offers some help via the ubiquitous multivitamin supplement! Scientists gave 132 struggling teens either a high-dose vitamin and mineral supplement or a placebo for a period of eight weeks. The teens taking the vitamin/mineral supplement showed measurably better mood control, fewer emotional explosions, and less suicidal thinking than those taking the placebo. The researchers noted that, overall, the improvements were modest; however, in a small subgroup of 30 teenagers diagnosed with disruptive mood dysregulation disorder—a condition where anger and irritability interfere with daily life—nearly two-thirds improved significantly on the supplement. In short, vitamin/mineral supplementation provided a modest benefit for almost all teens, and a major benefit for a smaller portion with acute issues. Study 3 - Lifetime of benefits for pregnant women A study conducted by researchers at Harvard Medical School and Stanford Medicine have determined that women who supplement critical vitamins and minerals during pregnancy reap benefits later in life. The researchers found that pregnant women with higher circulating concentrations of select vitamins and minerals appeared to stave off the risk of developing high blood pressure about 20 years later in middle age. The study was published in Hypertension in March 2025. Although a number of vitamins and minerals were studied, the researchers were particularly focused on the "metal" nutrients—manganese, selenium, magnesium, and copper. The American Heart Association had previously reported that the anti-inflammatory properties of these minerals likely helped protect against cardiovascular disease. The findings of the new study may provide the impetus to move the "likely" designation to the "conclusively" column. - - - Sources: Scientific Reports, Journal of the American Academy of Child & Adolescent Psychiatry, Hypertension, JustAPedia (Metabolic Dysfunction), Wikipedia (MASLD).
