evidence: No evidence supports the idea that eating fruit on an empty stomach affects longevity, fatigue, or dark circles under the eyes. [...] This myth seems to be an extension of myth number 1. It claims that you need to eat fruit on an empty stomach to gain all of its nutritional benefits. [...] SummaryEating fruit on an empty stomach may quickly increase your blood sugar. Pairing fruit with a meal or snack may help prevent this, which can benefit people with diabetes.