When dealing with vertigo, maintaining proper hydration is critical because fluid imbalances in the inner ear can trigger or worsen dizziness. General medical guidelines for 2026 suggest drinking at least 8 to 10 glasses (about 2 to 2.5 liters) of water per day. Some specialists recommend a more personalized approach: taking half your body weight (in pounds) and drinking that amount in ounces of water daily. It is vital to avoid "triggers" like excessive caffeine or high-sodium drinks, which can lead to fluid retention and exacerbate vestibular issues. For those with Meniere’s Disease, a specific cause of vertigo, consistent hydration helps stabilize the concentration of electrolytes in the inner ear's endolymph fluid. If you are exercising or in a hot climate, you should increase your intake further to prevent dehydration-induced lightheadedness from mimicking a vertigo attack.