Psyllium husk contains soluble fiber that may benefit your digestion and heart health. It may also help lower your risk of developing certain health conditions.

Psyllium is a form of fiber made from the husks of the Plantago ovata plant’s seeds.

It’s most commonly known as a laxative and is available over-the-counter (OTC) as ispaghula husk (Fybogel).

However, some research suggests that taking psyllium may benefit many parts of the human body, including the heart and pancreas.

Keep reading to learn more about the health benefits of psyllium.

Psyllium is a bulk-forming laxative. It works by soaking up water in the gut, making bowel movements more consistent, frequent, and easier to pass.

It can be used to help ease constipation and prevent complications, such as hemorrhoids and anal fissures.

Psyllium is also a prebiotic, which is needed for healthy colonies of probiotics to grow in the gut.

A healthy colony of good bacteria in the digestive system is essential for healthy immune function. Your body is better able to fight infection, reduce inflammation, and maintain healthy tissue and cells.

Research suggests that taking soluble fiber supplements like psyllium may help you manage your cholesterol levels.

A 2017 review found that taking 6 to 15 grams daily (g/d) of fiber supplements helped decrease LDL (“bad”) cholesterol by up to 24% and total cholesterol by up to 20%.

According to the American Heart Association, high cholesterol levels may increase your risk of several conditions, some of which may be life threatening. These conditions include:

If you have any of these conditions or you’ve been told to watch your cholesterol, ask a doctor if adding psyllium to a heart-healthy diet could help you.

Maintaining a moderate weight is important for your overall health, especially if you have obesity or overweight.

According to the National Heart, Lung, and Blood Institute, it could help prevent many chronic conditions, such as:

A 2023 review found that psyllium could help promote weight loss in people with obesity and overweight, which could help lower your risk of chronic conditions.

The authors found that taking an average dose of 10.8 g/d before meals for nearly 5 months helped participants lose weight.

Speak with a doctor about the possibility of taking psyllium if you have obesity or overweight.

If you’re living with diabetes, you most likely have to be mindful of your diet to maintain a healthy balance of insulin and blood sugar (glucose).

Some research suggests that fibers like psyllium could help people maintain a healthy glycemic balance.

However, the Food and Drug Administration (FDA) notes that not enough research supports the use of psyllium for diabetes.

As such, it’s important to speak with a healthcare professional before taking psyllium if you have diabetes. They may recommend a better alternative for your condition.

The exact dosage of psyllium depends on the product you’re using and what you’re using it for.

The usual recommended dosage is 7 to 14 g/d daily. However, some research suggests taking at least 20 to 25 g/d of psyllium with 500 milliliters of water to fully maximize the fiber supplement’s benefits.

This is because the recommended fiber intake for adults is 25 g/d for females and 38 g/d for males. However, adults in the United States only consume an average of 15 g/d.

As such, increasing the dosage of psyllium may provide more benefits.

Speak with a healthcare professional before taking psyllium supplements, especially if you’re living with a gastrointestinal condition and are experiencing a flare-up.

In some cases, fiber supplements like psyllium may worsen symptoms.

Like any supplement, psyllium may have potential side effects. You may be especially prone to these if you’re new to psyllium or if you take more than the recommended amount per day.

The most common side effects of psyllium are gas (flatulence) and bloating.

Other possible side effects include:

In rare cases, you may experience an allergic reaction to taking psyllium. This may lead to anaphylaxis, which is a medical emergency.

Call a doctor immediately if you experience any of the following symptoms:

  • breathing difficulties
  • swelling, especially around the face and throat
  • skin rashes and itching
  • tongue and skin discoloration, such as turning blue, pale, or gray
  • dizziness, lightheadedness, or fainting

Psyllium is most commonly consumed in powder or wafer form. It’s also available in capsules, granules, and as a liquid concentrate. It’s the main ingredient in many OTC laxatives, including:

  • Metamucil
  • Fybogel
  • Fiberall
  • Cilium
  • Maalox Daily Fiber Therapy
  • Uni-Laxative

Follow the directions on the packaging when taking any of these medications. Remember that a key component of how psyllium works in your lower intestine is its ability to soak up liquid, so make sure to drink plenty of water daily.

What does psyllium do for the body?

Psyllium is a bulk-forming laxative. It works by retaining water to help loosen and bulk up your stools, making them easier to pass through.

Is it OK to take psyllium every day?

It’s generally safe to take psyllium every day. However, supplements should only be used to supplement deficiencies in the diet. Eventually, the goal is to replace psyllium with food sources instead.

Who cannot take psyllium?

According to the United Kingdom’s National Health Service (NHS), psyllium isn’t recommended for people who have previously had an allergic reaction to psyllium or have health conditions like bowel obstruction, colonic atony, and phenylketonuria. People with kidney disease should also be careful about taking psyllium.

If you have a health condition or are taking medications, speak with a healthcare professional before taking psyllium.

What is the downside of psyllium husk?

The NHS notes that 1 in 100 people experience gas and bloating when taking psyllium husk supplements.

Psyllium is a laxative supplement typically used to help relieve symptoms of constipation.

Some research suggests it may have other benefits, such as promoting digestive and heart health, as well as helping you manage your weight.

Speak with a healthcare professional before taking psyllium. They could recommend the best dosage for you or an alternative treatment that may be better.