Taking omega-3 supplements, vitamin D pills, and doing light exercise at home three times a week for three years might slow down how fast your body ages—by about 3.8 months—compared to not doing any of these things.

We analyzed the available evidence and found one assertion suggesting that combining omega-3 supplements, vitamin D pills, and light home exercise three times a week for three years might slow biological aging by about 3.8 months compared to doing none of these things [1]. This is the only claim we’ve reviewed so far, and it is supported by the data we have. The evidence we’ve reviewed leans toward the idea that this combination of habits could have a measurable effect on how quickly the body ages at a cellular level. Biological aging refers to changes in the body’s cells and systems over time, which can differ from how old someone is in years. In this case, the reported delay of 3.8 months suggests a small but potentially meaningful difference in aging markers. We did not find any studies that contradict this finding, but we also did not review multiple studies or trials. The single assertion we analyzed comes from one source, and we cannot say whether this result would hold true across different groups of older adults, with different dosages, exercise routines, or durations. What we’ve found so far is limited but not dismissed. More research would be needed to see if this pattern appears in other populations or under different conditions. For now, if you’re an older adult looking for simple, low-risk habits that might help your body age more slowly, this evidence suggests that taking omega-3 and vitamin D supplements along with light exercise at home a few times a week could be worth trying — not because it’s proven, but because it’s safe and may offer a small benefit.