Fruit should always be eaten first thing in the morning or before other meals, because it digests faster than other foods. If you eat fruits with or after processed foods, it can cause gas or fermentation in your intestines. You Might Also Like Lemons September 5, 2013 Onions contain sulfur compounds that help your liver detoxify December 30, 2015 Legumes are high in fiber April 2, 2015