The single most effective dietary change for hemorrhoids is eating more fiber. Aim for 25 to 35 grams per day, which is roughly double what most Americans actually consume. Fiber softens and bulks up stool so it passes more easily, reducing the straining that swells hemorrhoid tissue and causes pain, bleeding, and itching.
How Fiber Helps Hemorrhoids
Hemorrhoids flare up when you strain during bowel movements or sit on the toilet for extended periods. Fiber tackles the root cause by changing the consistency of your stool. It increases the weight and size of stool while making it softer, so it moves through more easily and you spend less effort pushing.
There are two types of fiber, and both matter. Soluble fiber dissolves in water and forms a gel-like material that keeps stool moist. Insoluble fiber doesn’t dissolve. Instead, it adds bulk and helps material move through your digestive system at a steady pace. Most whole plant foods contain a mix of both types, so you don’t need to track them separately. Just focus on eating a variety of high-fiber foods throughout the day.
Best Foods to Eat
Beans and legumes are the most fiber-dense foods you can add to your plate. Half a cup of cooked navy beans delivers 9.6 grams of fiber, nearly a third of your daily target in a single side dish. Pinto beans come in at 7.7 grams per half cup, and kidney beans provide 5.7 grams. Tossing any of these into soups, salads, or tacos is one of the fastest ways to increase your intake.
Fruit is another easy source. A cup of raspberries packs 8 grams of fiber. A medium pear with the skin has 5.5 grams, and a medium apple with the skin has 4.8 grams. Prunes are worth mentioning on their own: just a quarter cup gives you 3.1 grams of fiber, and they contain a natural compound that draws water into the intestine, which further softens stool.
For grains, high-fiber bran cereal stands out. Half a cup contains about 14 grams of fiber, which is half of the 28-gram daily target for a standard 2,000-calorie diet. A cup of shredded wheat cereal provides 6.2 grams. Beyond cereal, whole wheat bread, oatmeal, brown rice, and barley are all solid choices.
Vegetables like broccoli, Brussels sprouts, sweet potatoes, and carrots round out a high-fiber eating pattern. There’s no single magic food here. The goal is to spread fiber across your meals so you consistently hit 25 to 35 grams each day.
A Simple Day of High-Fiber Eating
Reaching your fiber target is easier than it sounds once you see how the numbers add up. Breakfast could be half a cup of high-fiber bran cereal (14 grams) with a sliced banana. At lunch, add half a cup of kidney beans to a salad (5.7 grams). Snack on a pear (5.5 grams). At dinner, serve a cup of cooked broccoli alongside your main dish (about 5 grams). That’s already over 30 grams without any dramatic changes to what you normally eat.
Foods That Can Make Hemorrhoids Worse
Low-fiber, highly processed foods are the main culprits. White bread, white rice, pastries, chips, and fast food move slowly through your gut and produce hard, compact stools that require more straining. The more of your diet these foods make up, the more likely you are to aggravate existing hemorrhoids or trigger new flare-ups.
Alcohol is worth watching too. It acts as a diuretic, pulling water out of your system and drying out stool. If you drink, increasing your water intake alongside it helps offset that effect.
What about spicy food? Despite its reputation, the evidence doesn’t support avoiding it. A randomized, placebo-controlled trial published in Diseases of the Colon & Rectum tested red hot chili pepper against a placebo in 50 patients with symptomatic hemorrhoids. Bleeding, swelling, pain, itching, and burning scores remained unchanged after eating chili compared to placebo. There’s no reason to skip a spicy meal if you enjoy one.
Why Water Matters as Much as Fiber
Fiber works by absorbing water. Without enough fluid, adding fiber can actually make constipation worse, producing dry, bulky stools that are harder to pass. Aim for at least 48 to 64 ounces of water per day, which is roughly six to eight glasses. If you’re ramping up your fiber intake significantly, start at the higher end of that range.
Fiber Supplements as a Backup
Getting your fiber from food is ideal because whole foods also deliver vitamins, minerals, and other nutrients. But if you’re struggling to reach 25 to 35 grams through diet alone, a supplement can fill the gap. Psyllium husk (sold as Metamucil and generic versions) is the most commonly recommended option. It contains both soluble and insoluble fiber and is well studied for softening stool.
Some people find psyllium causes gas or bloating, especially at first. If that happens, switching to a supplement made with wheat dextrin or methylcellulose often reduces those side effects. Whichever type you choose, drink a full glass of water with each dose.
How to Increase Fiber Without Discomfort
Jumping from 10 grams of fiber a day to 35 grams overnight is a recipe for bloating, cramping, and gas. Your gut bacteria need time to adjust. Add about 5 grams per day each week until you reach your target. That might mean starting with an extra piece of fruit one week, then adding beans the next, then swapping white bread for whole grain.
Cooking beans thoroughly, choosing canned (rinsed) varieties, and chewing food well all help reduce gas during the transition. Staying consistent with water intake throughout the day is just as important as the fiber itself. Within a few weeks of steady high-fiber eating and adequate hydration, most people notice softer stools, less straining, and a meaningful reduction in hemorrhoid symptoms.