14.3 Supplements for Older Adults 1. Discuss the advantages/disadvantages of taking vitamin/mineral supplements for older adults Popular vitamins for seniors and others include vitamins D, E, and B12, and minerals such as calcium and iron. Some advantages are it counterweighs for perceived dietary deficiency and promotes optimal health. Supplements help to lower the risks of various diseases some of which support bone growth, reduce acne, and support the immune system. Taking vitamin supplements in capsule, chewable or liquid form is a convenient way to supplement one’s diet; however, vitamin supplements also have potential disadvantages, especially when taken in excessive doses.Certain substances can accumulate in your body and cause adverse effects. In some instances, taking vitamin supplements can trigger a health condition or make an existing health condition worse. Vitamin supplements may contain aspartame, which can cause problems if you suffer from phenylketonuria, or PKU.