3 Major Benefits of Fiber That Transform Your Digestion, Weight, and Health

Everyone knows that fiber is good for your health. In fact, we’re told to eat more fiber all the time. The problem is that nobody really explains why. The truth is, the benefits of fiber go far beyond just digestion. 

At The Keys To Fitness, we simplify fitness for everyone and help heavier people who are ready to get fit and stay fit. 

Today, we’ll go over 3 surprising benefits of fiber that can change your health for the better. 

Fiber: The Nutrient Everyone Overlooks

Weirdly enough, most people are pretty aware of how great fiber is for your health but it’s still grossly under-eaten. Only about 5% of the American population eat enough fiber every day. 

Yes, you read that right. 

This means that 95% or roughly 323 MILLION people don’t get a healthy amount of fiber each and every day. Jeez. 

If this many people aren’t eating enough fiber, you’d think we’d be going through a pooping pandemic or something.

But then again, if this many people are getting in such little amounts of fiber, I could see why this “pooping pandemic” hasn’t really budged

Moving on

If you take a look around your local grocery store, you’ll see plenty of items claiming to be high-fiber or good sources of fiber. You ever wondered why these high-fiber foods are always recommended for good health?

Most people think that fiber is what helps you digest food better and to keep your bowels from being backed up. And they’re right. 

But wait, there’s more! – Billy Mays

For instance, did you know that fiber plays a role in heart health and fat loss? Probably not. 

Luckily, you’re in the right place. We’ll break down 3 of the top benefits of fiber (backed by science and real-world health outcomes) that you should know. 

After today, you’ll walk away with a new level of respect for this underrated nutrient. 

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Fiber Supercharges Your Gut Health

Soluble vs Insoluble Fiber 

There are actually two main types of fiber: Soluble and Insoluble fiber. Both play different roles in your digestion. 

To spare you the details of the duty, I’ll keep things brief:

  • Soluble fiber dissolves in water and will form into a gel-like substance that helps with lowering cholesterol and regulating your blood sugar.
  • Insoluble fiber doesn’t dissolve. It gets digested and adds the bulk to your stool, which will promote regular bowel movements. 

The Benefits of Fiber for Your Gut and Digestion System

Soluble fiber acts like a prebiotic. In short, a prebiotic feeds the beneficial bacteria in your gut. With this prebiotic, the good bacteria will improve the lining of your gut and can reduce inflammation. 

With reduced inflammation in the gut and a healthier lining of the gut, you improve your immune system. Bet you didn’t know that!

The improvement in your immune system is from the strengthening of your gut lining. This bolstered barrier helps to prevent harmful microbes from entering the bloodstream. And because it does this, it really helps your body fight off illnesses more effectively. 

And as we noted earlier, the insoluble fiber adds bulk to your stool. It also softens your poop and helps with preventing constipation. 

So with a healthy gut microbiome and healthy bowel movements, your stomach can digest food more efficiently. And having this healthy gut microbiome actually reduces bloat and gas over time. 

A high-fiber diet can also prevent common GI (Gastrointestinal) issues like diverticulitis, hemorrhoids, and IBS (irritable bowel syndrome). 

This is because the main symptoms of diverticulitis (inflammation pouches in the colon), hemorrhoids (swollen veins from straining during bowel movements), and IBS (bloating, cramps, and irregular bowel movements) can be helped with the benefits that fiber provides. 

But this is only the first benefit of increasing the fiber in your diet. Gut health isn’t the only area that fiber helps you with. 

Fiber Supports Sustainable Weight Loss

Did you know that fiber has an impact on satiety (fullness), cravings, and calorie control?

Not only does a high-fiber diet improve your gut health, it also slows down your digestion and suppresses your appetite. This means that you’ll feel fuller for longer!

And because you’ll feel fuller for longer, you’ll eat fewer calories when your meals are higher in fiber. 

Simply put: fewer calories per meal = fewer calories per day = weight loss. 

And with feeling fuller for longer periods of the day, you’ll be able to curb your cravings a lot easier. Part of why is because your blood sugar and energy levels will be more stable. 

You don’t get the crashes and dips in energy because you won’t have spikes in your blood sugar because of the fiber slowing down the rate of absorption of the nutrients from your food. 

Remember how fiber slows down digestion? Because it’s slowed down, this means that you won’t get a massive rush of sugar into your bloodstream, which causes the spike and then the crash. 

And because an adequate amount of fiber in your diet slows down the absorption of food (and by proxy, sugar), this means that the pancreas doesn’t have to work as hard to pump insulin into the bloodstream to counterbalance the influx of sugar. 

Or in English, eating more fiber helps to prevent insulin resistance. Crazy, isn’t it?

By the way, that spike in your blood sugar is what causes your body to experience food cravings. That’s because that dump of insulin usually leads to an overcorrection for the sugar in the blood, which leads to a drop in sugar levels. And because there’s a drop in sugar in the bloodstream, your brain starts to send signals of hunger to try to balance the sugar levels again. 

And due to the hunger signals turning into strong cravings, this usually drives people to overeat (usually fats and carbs) and spike the sugar in the bloodstream again. Leading to a cycle of spikes and drops. 

Essentially, adding more fiber to your meals will help you reduce your cravings. 

But cravings and weight loss aren’t the only benefits of fiber in your diet, there are even more long-term advantages. 

Fiber Protects Your Heart and Lowers Disease Risk

Did you know that fiber can lower your cholesterol? Specifically, soluble fiber. Like we detailed earlier, soluble fiber turns into a gel-like substance when it’s been digested. This “gel” is what binds to your LDL (bad cholesterol) and gets excreted from the body when you poop, thus lowering your bad cholesterol levels.

Adding to this, because fiber helps to stabilize your blood sugar levels, fiber becomes a vital part of preventing your risk of developing type 2 diabetes. That’s due to the fact that you put yourself at risk of becoming insulin resistant when you constantly spike your body’s blood sugar.

And because fiber helps to blunt these spikes, it plays a pivotal role in preventing your body from becoming resistant to insulin.

In addition to diminishing your risk of developing type 2 diabetes, extra fiber in your diet helps with preventing other diseases by lowering chronic inflammation in the body, namely in the gut as we described before.

Heart disease usually shows up when plaque builds up in your arteries, slowing blood flow and making heart attacks and strokes way more likely.

On top of that, fiber can help lower your blood pressure and improve circulation, which just gives your heart less work to do overall.

Chronic inflammation is a major contributor to a whole host of problems and diseases, prominently diseases like heart disease and some forms of cancer.

Am I selling you on how powerful fiber actually is? If not, then check this out:

An increased intake of fiber is also related to a lower risk of not only heart disease but also strokes.

And if you’re getting your fiber from whole, natural foods (like fruits and vegetables), you’re probably getting the added benefits of the antioxidants and phytonutrients that come with them.

In short, antioxidants and phytonutrients work by neutralizing free radicals and calming the immune response, which reduces cell damage and chronic inflammation. And we’ve already described the effects of chronic inflammation.

Also, if you’re getting that fiber from actual food instead of powders or bars, you’re also cutting out more processed junk (aka, another win for your gut, energy, and long-term health).

Key Takeaway: Don’t Sleep on Fiber. Your Body Notices When You Do

The benefits of fiber span far greater than just better bowel movements. Although, that is a big deal, the improvements in your gut health, heart health, reduction in inflammation, reduction in diseases like diabetes or heart disease create an overwhelming amount of benefits. 

You’d be crazy to leave all of the benefits on the table. At this point, it’s not optional, it’s essential for overall health. 

By now, you should be able to see how a lifelong intake of a higher fiber diet correlates with longevity and a better, healthier life. 

All you need to do now is just start with simple changes.

 Add some fruit to your breakfast or as a snack during the day. Munch of vegetables like celery or carrots as a quick snack. Beans and oats are also easy to add to almost any dish. 

There’s no reason why you can’t add a handful of vegetables to every meal you make to get an extra boost in fiber. Especially when you know how impactful that added fiber is for you. 

As long as you’re within a healthy range for your daily fiber intake, you’ll be good to go. For most adults, 25-38 grams of fiber a day is a great place to start. 

Now your next step is to audit your meals, are you getting enough fiber everyday? 

Let me know how much fiber you’re getting on a daily basis and tell me how you’re getting your fiber in for the day. 

The benefits of fiber are far too important to overlook. Especially now that you know how some small dietary tweaks now can help to prevent major health issues later down the road. 




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