Fiber and Its Role in Weight Loss

fiber and weight loss

In recent years, it’s not hard to notice the struggles that people go through to shed some flesh. Achieving and sustaining a healthy weight presents many benefits, including but not limited to the prevention of diseases like diabetes, heart diseases, and some forms of cancer.

Many of the weight loss practices available today are overly complicated, which could be one reason they tend not to work for some. However, there should be an easier way to achieve weight loss goals. This is where a simple weight loss practice like introducing a greater amount of fiber to your meal plan comes in handy.

This article explores what fiber is, how much you should aim for daily, its different sources, and how the Strive Weight Loss Challenge App can further improve your weight loss progress.

What Is Fiber?

Fiber is simply an edible but indigestible part of a plant. It’s different from fats, proteins, and carbohydrates, which the body could easily break down and absorb. Fiber can either be soluble or insoluble. Interestingly, the two forms of fibers can help you achieve your weight loss goals.

While soluble fiber (composed of plant pectin and gums) dissolves in water, insoluble fiber (composed of plant cellulose and hemicellulose) can’t dissolve in water. Soluble fiber dissolves in water and transforms into a gel that slows digestion, while insoluble fiber increases stool bulk and increases the rate of food transport in the GIT. 

How Much Fiber Should You Take Daily?

According to a Journal of Academy of Nutrition and Dietetics paper, the average male and female should aim for a daily intake of 38 g and 25 g of dietary fiber based on a 2,000-calorie diet, respectively.

However, suppose you have gastrointestinal tract (GIT) issues. In that case, you should ensure you gradually increase your fiber intake, as fiber is more of a double-edged sword for this category of individuals. While fiber may aid relief from certain GIT disorders like constipation, going from zero to 30 g or more overnight (via the intake of high-fiber foods like bran) may present a risk of other GIT issues like bloating and gas.

How Does Fiber Aid Weight Loss?

Both soluble and insoluble fiber can promote weight loss and help sustain a healthy weight for a prolonged period. In addition, fiber is super filling, and as such, it keeps you filled for a longer time, reducing frequent hunger pangs.

Specifically, the soluble fibers are excellent appetite suppressants; they directly regulate the hormones concerned with appetite control — ghrelin and leptin. Several studies have been done around how soluble fibers control appetite hormones.

Some studies revealed that regular consumption of soluble fibers could reduce the amount of hunger hormones, such as ghrelin, in the body. On the contrary, other studies posit that soluble fibers work the other way — via the stimulation of the production of certain hormones that promote satiety, e.g., peptide YY, GLP-1, and cholecystokinin. Either way, soluble fibers reduce your frequency of calorie intake, thus helping to achieve weight loss. 

On the other hand, insoluble fiber contributes to weight loss in a unique way. Since they do not dissolve in water, they often become bulky and constantly trigger bowel movements through stool formation, thus reducing constipation.

Excellent Sources of Fiber

Here are some of the excellent sources of fiber that you could consider when preparing your next meal:


This is a generous source of fiber. For example, a medium-sized pear can offer up to 5.5 g of fiber.


Avocados are rich in plant fats, qualifying them as desirable foods for weight loss. In addition, the fruit is dense with up to 10 g of fiber in just one cup of raw avocado.


Strawberries are not only tasty but are also packed with essential nutrients, including fiber. A cup of fresh strawberry could offer up to 3 grams of fiber.


These are fiber-rich fruits and are a top pick for those looking to shed weight. One medium apple offers as much as 4.4 g of fiber.


An unripe banana contains resistant starch, which in many ways acts as a fiber. In addition to this, you obtain a decent fiber content of 3.1 g in one medium banana.


In addition to their intense flavors, raspberries are packed with essential nutrients, including an impressive 8 g fiber content in one cup. 


Carrot is a crunchy fruit replete with essential nutrients like vitamin B6, vitamin K, beta carotene (a vitamin A precursor), magnesium, etc. One cup of raw carrots fetches you up to 3.6 g of fiber.


This cruciferous vegetable is regarded among the most nutritious fruits on earth, offering a plethora of plant nutrients like vitamin C, folate, vitamin K, B vitamins, iron, manganese, potassium, etc. In addition, one cup of broccoli provides you with an impressive 2.4 g of fiber.

Brussels sprouts 

This is yet another cruciferous vegetable that shares many similarities with broccoli. Like broccoli, brussels sprouts are packed with various nutrients, such as vitamin K, folate, potassium, alongside potent antioxidants active against cancer. You get as much as 3.3 g of fiber in one cup of raw brussels sprouts.


While the artichoke may not be as popular as some other fruits, it is one vegetable that has proven to be a rich source of essential nutrients. One raw globe artichoke yielded a whopping 6.9 g of fiber, making it one of the best sources of fiber you can find.

Other foods rich in fiber include:

  • Beets
  • Kidney beans
  • Lentils
  • Chickpeas
  • Oats
  • Quinoa
  • Chia seeds
  • Almonds
  • Sweet potatoes
  • Dark chocolate

How the Strive App Can Further Aid Weight Loss

While adequate fiber intake can help you achieve your weight loss goals, keeping track of your weight loss progress lets you know if your meal plan approach is somewhat effective. What if we told you you could monitor your progress right from your mobile phone? Sounds exciting, right?

We found that many people struggle to keep track of their weight loss journeys, causing them to backslide along the line, as they have no reason to stay motivated. This led us to develop Strive a Fitness Competition App that allows you to keep track of weight loss metrics like Weight, Body Fat percentage, Body Mass Index (BMI) that integrates with Smart Scales and allows you to manually weigh in. The app also integrates with the Health App on your iPhone which allows access to your number of steps, exercise minutes, move calories burned if you have any Smart Watches that records your exercise activities such as the Apple Watch.

Strive allows you to participate in competitions with friends and family in a leaderboard format from 1 week to 10 weeks for multiple health and fitness competition types:

  • Weight Loss Percentage Competitions
  • Body Fat Percentage Loss Competitions
  • BMI Loss Competitions
  • Step Competitions
  • Distance in Miles Competitions
  • Move Calories Competitions
  • Exercise Minutes Competitions

How do you get started? You can easily install Strive from the App Store today and smash those weight loss goals you’ve always had in mind.