Vertigo has been associated with both high cholesterol and high blood sugar (diabetes).
Diet - Since atherosclerosis (hardening of the arteries) and high blood pressure can directly or indirectly be a cause of vertigo, make dietary changes. These include getting rid of junk foods and simple sugars and white bread, and switching to eating more fish, along with fresh fruits, vegetables and whole grains. Stop or reduce sugared drinks and switch to fresh vegetable juices. For healthy diet suggestions, see this diet web page. If you have high blood pressure, see this hypertension page for ideas on how to lower blood pressure. Dietary changes can reduce your risk for cardiovascular conditions and stroke, and they can reduce your need for heart or blood pressure medications which can be a cause of vertigo. If you have high cholesterol, see this cholesterol page. To lower blood sugar, see the page on diabetes. Diabetics have a much higher risk of developing hearing loss as are nondiabetics which indicates high blood sugar levels to be a potential factor in inner ear disease.
Another possible benefit of eating a healthy diet is that it reduces overall inflammation in the body, which could possibly reduce inflammatory problems within the inner ear.
Smoking - If you are a smoker, do your best to reduce or quit. Smoking causes hardening of the arteries.
Exercise - Try to take a half hour walk every day if you are able to.