Properly, hernias, as often referred to, are when organs find holes or weak points in muscle and bulge into them(1), most commonly on the lower or upper abdomen(2) but also affecting someplace in the "thigh, stomach, groin or surgical scar in your abdomen". Constipation, heartburn, and acid reflux all cause or promote hernias(1). Abdominal hernias may also in turn "mimic digestive problems like belly pain, vomiting or constipation"(2).
Inadequate fiber consumption promotes constipation in turn - some of the most fiber-rich foods are also protein-rich: "lentils, black beans or split peas". Omega-3 fats in many fish may help reduce hernia-promoting inflammation(1). [Don't get farmed or mercury/pollution-laden!] Both bloating AND constipation will press "the intestinal tissue further into the abdominal wall" so foods causing excess gas, more commonly legumes and some veggies, may also be an issue with hernias. Swallowing excessive amounts of air while eating or drinking food too quickly will also cause bloat(2).
Inadequate fruit and veggie consumption lowers intake of antioxidants, which help resist succumbing to infections and illness... and heal from them. Many fruits and veggies are non-acidic, including "melons, bananas, guava, papaya, leafy greens, bell peppers,... and carrots. Particularly fiber-rich varieties include raspberries, pears, artichokes, broccoli and peas."(1).
Personal Product Favorites (links):
Probiotic and prebiotic fiber
Super greens
Super fruits
References:
1. McLaughlin, August. "Can Certain Foods Heal a Hernia?" LiveStrong.com. Leaf Group Ltd. Web. January 12, 2024. https://www.livestrong.com/article/461858-foods-to-heal-a-hernia/.
2. McNiff, Serena. "The Best and Worst Foods to Eat if You Have a Hernia." LiveStrong.com. Leaf Group Ltd. Updated October 4, 2021. Web. January 12, 2024. https://www.livestrong.com/article/456999-foods-to-avoid-with-hernia/.