Dizziness has been reported as potential side effect of using supplements such as garlic, melatonin, saw palmetto, red yeast rice, policosanol and black cohosh. Vertigo, a particular form of dizziness, has been reported with the use of some weight loss supplements that contain stimulants, such as caffeine.
On the other hand, there is evidence that Ginkgo biloba may improve symptoms of vertigo. Vitamin D may improve balance and reduce the risk of falls in older adults.
You can learn more about each of these supplements by clicking the links.