According to a study deemed credible by the NIH (National Institutes of Health), Some dietary supplements can help you get adequate amounts of essential nutrients if you don’t eat a nutritious variety of foods. However, supplements can’t take the place of the variety of foods that are important to a healthy eating routine. To learn more about what makes a healthy eating routine, the Dietary Guidelines for Americansexternal link disclaimer and MyPlateexternal link disclaimer are good sources of information.

Some dietary supplements can improve overall health and help manage some health conditions. For example:

Calcium and vitamin D help keep bones strong and reduce bone loss.
Folic acid decreases the risk of certain birth defects.
Omega-3 fatty acids from fish oils might help some people with heart disease.
A combination of vitamins C and E, zinc, copper, lutein, and zeaxanthin (known as an Age-Related Eye Disease Study [AREDS] formula) may slow down further vision loss in people with age-related macular degeneration (AMD).

Here's a link to the article https://ods.od.nih.gov/factsheets/WYNTK-Consumer/