
Fiber is an essential part of a healthy diet, offering a range of health benefits. It is recommended that adults consume 25-30 grams of fiber per day, but most fall short of this, with adults in the US averaging only 15-20 grams per day. Increasing fiber intake can be done gradually and easily by making simple food swaps and adding fiber-rich ingredients to meals. This includes opting for whole grain versions of starchy foods, such as wholewheat pasta, brown rice, and potatoes with skins. Beans, legumes, lentils, and chickpeas are also excellent sources of fiber and can be added to salads, stews, and curries. Nuts, berries, and seeds are snackable sources of fiber, and fruits and vegetables should be consumed whole for maximum fiber intake.
| Characteristics | Values |
|---|---|
| Recommended daily intake | 25-30 grams |
| Sources of fiber | Fruits, vegetables, legumes, whole grains, nuts, seeds, starchy vegetables |
| High-fiber fruits | Berries, bananas, peaches, raspberries, apples, oranges, grapefruit, avocados, pears, sweet potatoes |
| High-fiber vegetables | Cabbage, kale, artichoke, Brussels sprouts, asparagus, barley |
| High-fiber legumes | Beans, lentils, peas, chickpeas |
| High-fiber whole grains | Oatmeal, brown rice, whole-wheat flour, whole grain bread, bulgur wheat, wholewheat pasta |
| High-fiber nuts and seeds | Chia seeds, walnuts, almonds, pumpkin seeds |
| Other tips | Drink plenty of water, choose high-fiber breakfast cereals, replace refined grains with whole grains, eat fruits and vegetables in whole form |
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What You'll Learn

Eat more fruit and vegetables
Eating fruits and vegetables is a great way to increase your fiber intake. While most carbohydrates break down into sugar, fiber remains intact as it passes through your digestive system. It is recommended that women aim for 25 grams of fiber daily and men for 38 grams. However, Americans average only around 16 grams of fiber per day.
Fruits such as raspberries, blackberries, bananas, peaches, apples, oranges, and grapefruit are high in fiber. You can add these to your diet by including them in your breakfast cereal, pairing them with yogurt, or simply eating them as a snack.
When it comes to vegetables, legumes like beans, dried peas, and lentils are excellent sources of fiber. A cup of cooked beans can deliver up to 50% of your daily fiber needs. You can add beans to your salads, ground beef dishes, or use hummus and other bean dips. Lentils are also a great option as they are low in fat, high in protein, and filled with fiber. They cook quickly and can be added to soups, salads, and even chili.
Another way to increase your fiber intake is to eat more whole grains. Replace refined grains with whole grain versions like oatmeal or brown rice. Whole grains have the germ and bran intact, making them more nutritious. Additionally, you can sprinkle oat bran or wheat germ on your salads, soups, cereals, and yogurt.
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Choose whole grains
Whole grains are an excellent source of dietary fibre and can be incorporated into your diet in many ways. Whole grains are the edible seeds of plants, and a grain is considered "whole" if it contains the three key parts of a seed: the bran, germ, and endosperm.
Whole grains are typically high in iron, magnesium, manganese, phosphorus, selenium, B vitamins, and dietary fibre. They are also a good source of antioxidants, which have anti-inflammatory benefits. Research has shown that a diet rich in whole grains can decrease the risk of heart disease, type 2 diabetes, and certain cancers.
- Include at least one serving of whole grains in every meal.
- Keep a jar of oat bran or wheat germ on hand and sprinkle it over salads, soups, breakfast cereals, and yoghurt.
- Use whole-wheat flour when cooking or baking.
- Choose whole-grain bread. Look for bread with visible grains or seeds, as these are more nutritious.
- Opt for whole-grain cereals with at least 5 grams of fibre per serving.
- Snack on whole-wheat crackers.
- Cook with brown rice instead of white rice. You can start by mixing the two together if you find it challenging to make the switch.
- Choose whole-grain pasta, which has more fibre and nutrients and will keep you feeling fuller for longer.
- Try quinoa, buckwheat, and amaranth, which are pseudocereal grains cooked and consumed like cereal grasses but do not come from grasses.
- Include oats, such as steel-cut oats, oat groats, and rolled oats, in your diet. Oats are packed with nutrients and are a great source of beta-glucans, a type of soluble fibre linked to various health benefits.
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Legumes are a good source
A slow and gradual shift to a high-fiber diet is recommended to avoid any discomfort. It is best to get your nutrition from food rather than supplements. The recommended daily intake of fiber is 25 to 30 grams, but most people fall short of this.
Chickpeas, for example, are a popular legume that serves as an excellent source of plant-based protein and fiber. They are also packed with iron, vitamin B-6, and magnesium. You can use chickpeas as a base for hummus and falafel, or add them to soups, tacos, and salads.
Pinto beans are another fiber-rich legume. They have been found to promote a healthy gut by increasing beneficial gut bacteria and protecting against insulin resistance. Additionally, pinto beans are a great source of calcium and iron.
Lentils are an excellent source of vegetarian protein and fiber. They go well in soups, stews, couscous, and quinoa dishes.
Green peas, a type of legume, are a great source of fiber, protein, vitamin C, vitamin A, and vitamin K. They contribute to a healthy gut and maintain healthy blood sugar levels.
You can slowly incorporate legumes into your diet by adding them to your favourite meals. Replace meat with legumes in a few meals per week, or add beans to ground beef dishes, casseroles, and salads. Legumes are a delicious and nutritious way to increase your fiber intake gradually.
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Drink water to aid digestion
Drinking water is essential for digestion, especially when increasing your fiber intake. Water-soluble fiber, found in fruits, vegetables, legumes, and whole grains, absorbs water during digestion, increasing stool bulk and aiding bowel movements. Aim for a total fiber intake of 25 to 30 grams per day, with about a quarter of that coming from soluble fiber (around 6 to 8 grams).
Water plays a crucial role in the digestion process. When you increase your fiber intake, drinking adequate water becomes even more important. Soluble fiber, as the name suggests, dissolves in water and forms a gel-like substance in the digestive tract. This helps to add bulk to the stool, making it softer and easier to pass. Additionally, this gel-like substance can help slow down the absorption of sugar and cholesterol in the intestines, leading to better blood sugar control and lower cholesterol levels.
To ensure optimal digestion and absorption of soluble fiber, drinking enough water is key. Aim for around eight glasses of water per day, and even more if you're physically active or live in a hot climate. Spread your water intake throughout the day, and try to drink a glass of water with each meal to aid in digestion.
It's important to note that insoluble fiber, the other type of fiber, does not dissolve in water. Instead, it remains intact as it passes through the digestive system. Insoluble fiber is found in whole grains, wheat bran, nuts, and vegetables. While it doesn't absorb water like soluble fiber, it still plays a vital role in digestion by promoting regular bowel movements and preventing constipation.
By increasing your fiber intake slowly and staying properly hydrated, you can avoid potential digestive issues such as gas, bloating, and constipation. Remember to introduce high-fiber foods gradually and listen to your body, as everyone's tolerance for fiber is different.
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Nuts and seeds are fibre-rich
Chia seeds are an excellent source of insoluble fibre, which promotes normal digestion and may lower your risk of diabetes. Flax seeds, hemp seeds, pumpkin seeds, sesame seeds, and sunflower seeds are also high in fibre. A simple way to incorporate seeds into your diet is to sprinkle them on your meals, such as salads, sauces, vegetables, or whole grains like brown rice or quinoa.
A one-ounce portion of high-fibre nuts or seeds can provide between 5 and 35% of your daily fibre needs. This is roughly equivalent to a handful, or a quarter of a cup. However, it is recommended to limit your intake to one or two ounces of nuts or seeds per day, as consuming more may result in excess calorie intake.
Nuts and seeds are a great way to add flavour and texture to your meals, while also boosting your fibre intake. They can be enjoyed in a variety of ways, whether sprinkled on salads, added to sauces, or simply eaten as a snack.
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Frequently asked questions
Start by adding a small handful of nuts (30g) to your meals, as they are a good source of fiber. You can also add berries to your cereal, as they are high in fiber and low in sugar. Finally, try to include legumes like beans, dried peas, and lentils in a few meals per week, as they are rich in fiber and offer several health benefits.
You can get fiber from a variety of plant-based foods, including fruits, vegetables, whole grains, seeds, and nuts. Try to eat the whole fruit instead of drinking juice, as the former contains more fiber and less sugar. You can also replace refined grains with whole grains, such as oatmeal or brown rice, as they are more nutritious.
The recommended daily fiber intake is 25-30 grams, but most adults in the United States average about 15-20 grams per day. Therefore, it is important to find ways to increase your fiber intake slowly and gradually.











































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