Updated: 05/17/2016 - Website operated by Leptigen

Metamucil Review - Does This Fiber Supplement Really Work? Are bad taste and adverse effects deal breakers?

Editor's Review: 2.5 / 5.0
Metamucil Review

You may be surprised by what I say in this Metamucil review. We at DietSpotlight took an in-depth look at this product, examining the ingredients, side effects, customer service and clinical research. We additionally focused on all sorts of user comments we found all over the web. Lastly, we summed up all of the facts and feedback we discovered to give you the info you need.

EDITOR'S TIP: Combine Metamucil with a proven fat burner such as Leptigen for better results.

What You Need To Know

To start with, Metamucil is a line of fiber supplements made by Proctor & Gamble. These products are available in common grocery stores and supercenters. While the powders are probably the most popular, there are also capsules, bars, wafers and probiotics. The purpose is to help you maintain digestive health, encourage regularity and promote a healthy immune system. They may also help you feel less hungry between meals, lower cholesterol levels and regulate healthy blood sugar levels. It can be used up to three times daily, along with meals or in between meals. The primary ingredient is Psyllium Husk (a type of natural fiber).

Metamucil has been available since 1934. These products are easy to come by in local stores and there is plenty of customer feedback posted online. Also, there are sugar-free options available, but read on…

Bad Taste – “Something to Consider?”

First off, we looked at Metamucil ingredients and the flavor. “We sorted through a lot of customer reviews and noticed that there are numerous complaints regarding the actual taste. Naturally this is concerning because people are less likely to stick with it if that’s the case,” says our Research Editor.

According to one customer, “I don’t know how people drink this stuff on a daily basis. The texture is awful, it feels slimy, and the aftertaste makes me ill. Better off just getting your fiber the old fashioned way through fruits and veggies, or take the pill form instead. What a waste of my money.”

“Tastes absolutely terrible. Has a very odd aftertaste that actually made me gag,” said another user.

For some, the taste was near that of fruit juice.

“Taste good. Taste like orange juice,” said one person.

Another shared, “It works for it’s intended purpose and tastes good.”

Adverse Effects – “Another Concern”

Quite a few customers have complained about side effects from Metamucil. In fact, one user commented, “OMG this stuff is aggressive! I have had the worst side effects from this, severe stomach pain, bloating, gas pains, nausea while using this product.”

Another customer mentioned, “Metamucil gave me a lot of cramping. The day after I would take it, I would go and it would be painful, irritating and cramps would last for about 20 minutes.”

Not surprisingly, there are people who saw this as being gentle, not harsh.

Gentle, and is effective, for me, if taken first thing the a.m. with 8 oz. of water,” was one comment.

Others saw changes for the better, “ It gives me enough fiber that my intestinal episodes have been minimized.

According to our extensive research, if there is some particular part of a diet supplement that is quite bothersome (bad taste, serious adverse effects, no real science) the odds of lasting weight-loss are not good. This means if Metamucil does cause serious adverse effects in numerous people, this could be problematic.

The Science – “Legit?”

From what we could gather, there are some clinical studies that support Metamucil as a supplement for lowering cholesterol levels and promoting regularity. On the other hand, there is no solid link between it and long-term weight-loss or fat reduction. At DietSpotlight, we prefer to see published science that supports the product and we didn’t this time.

The Bottom Line – Does Metamucil Work?

Well now, are we raving over this fiber supplement? Well, we like Metamucil’s longevity as a product and some positive comments we saw about it online. However, we have some reservations about it because it’s not backed by science as a fat-loss product. Also, we’re concerned about the adverse effects and less-than-savory taste.

If you’d like to shed more pounds of fat, we suggest you go with a supplement that contains clinically tested ingredients and offers plenty of bang for your buck.

Among the best products we’ve seen in 2016 is one called Leptigen. This supplement contains a blend of four ingredients, which have been shown via clinical testing to possibly help improve fat loss and ignite metabolism. Furthermore, user comments found on the internet show people are seeing solid results.

Also, the makers of Leptigen are so confident in their product they’re offering a Special Trial Offer, which is a good sign.

Learn More About Leptigen »
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How Does Metamucil Compare?

Previous Metamucil Review (Updated January 2, 2014):

What You Should Know

Click Here To See Our Highest Rated Review

Would be dieters are always looking for the elusive magic pill that will allow them to eat everything they want and still lose weight. Unfortunately to date, no such pill exists. There is no shortage on commercials and print ads that promote adding fiber to your diet. One doesn't have to be a rocket scientist to see that a healthy digestive system will be more efficient at eliminating excess waste. According to the manufacturers, diet products that contain high amounts of fiber can help increase satiety making you feel fuller. The best way to increase your fiber is to eat foods that have a high fiber content. Sounds simple enough right? Unfortunately research suggests that most people's diets are deficient in fiber. This is where a supplemental form of fiber such as Metamucil may be useful. Metamucil is sold as a dietary supplement and as a laxative not a weight loss product, however many consumers have begun to use Metamucil as an aid to weight loss.


Metamucil comes in tablets, wafers and in powder form. The main ingredient is fiber. However, fiber isn't the only thing on the Metamucil Ingredients list

Product Features

The whole concept of taking Metamucil as a weight loss aid is that when taken, it gels in the stomach and helps dieters to take in less food which results in weight loss.

See Our Featured


  • Metamucil is comes in many forms to fit various lifestyles.
  • Metamucil may be act as an aid to digestion and assist with constipation problems.


  • Taking excessive amounts of Metamucil can result in a vitamin deficiency.
  • People have been known to develop a dependency on laxatives and stool softeners.
  • Some find the flavors unappetizing. (See reader comments.)
  • There is no evidence that Metamucil has an effect on reducing body fat or that taking Metamucil will increase the rate at which the body metabolizes fat.


Would be dieters looking for a "quick fix" and who do not want the commitment of eating a healthy diet rich in fiber will likely turn to such products as Metamucil for weight loss. However it should be noted that there is insufficient evidence to prove that Metamucil when used as a dietary supplement will work as an effective weight loss aid. Nor does the evidence suggest that Metamucil will increase the rate at which the body metabolizes body fat. Metamucil may act as an aid to better digestion and assist with constipation. Taking excessive amounts of Metamucil can result in a vitamin deficiency in the body and many consumers have developed a dependency on laxatives and stool softeners. The product is available for sale at many online retail sites which carry vitamins and supplements. Many local grocery and drugstores may carry Metamucil as well. Metamucil comes in many forms, is reasonably priced and affordable for the most consumers.

Metamucil Questions & Answers:

We examined hundreds of user responses and customer comments about Metamucil. Then we created this helpful FAQ.

What are the side effects of Metamucil?

Possible Metamucil side effects may include abdominal discomfort, bloating, diarrhea and stomachache. This is according to some customer reviews.

What are the ingredients in Metamucil?

Metamucil ingredients are psyllium husk, sucrose, natural and artificial orange flavor, yellow 6 and citric acid.

Does Metamucil work?

The key ingredient found in Metamucil is psyllium husk. This is a natural source of fiber that has been clinically tested. It has been shown to increase regularity. Therefore this supplement should help improve bowel movements.

If you are trying to lose excess body fat, then you should consider replacing Metamucil with a diet product that contains clinically tested ingredients for weight-loss. One option is Leptigen.

How much does Metamucil cost?

The list price for Metamucil is $16.99. This is for a three-pound container.

How should I take Metamucil?

The directions say to add two tablespoons of Metamucil to eight ounces of liquid. It is often used with water. This product can be used three times a day. There are 57 servings in a container.

How do I contact Procter & Gamble customer service?

You can contact Procter & Gamble by calling 1-513-983-1100.

Can I take Metamucil if I have a health condition?

Anyone with a health condition should consult a doctor before using Metamucil. The same goes for people taking prescription drugs. Also, women who are pregnant or nursing should speak with their doctor before taking this supplement. This product should not be used by individuals under 18.

What do users like about Metamucil?

Some people appreciate that Metamucil helps with regularity. Others like that this supplement can help lower cholesterol levels.

What do users not like about Metamucil?

Some users do not like the taste of Metamucil. Also, some people have complained about abdominal discomfort and gas.

Does Metamucil contain sugar?

Yes, Metamucil contains 16 grams of sugar per serving. However, there is a sugar-free version available. It contains an artificial sweetener.

Does Metamucil help treat constipation?

Yes, Metamucil can help treat constipation.

Do you know of any special deals or discounts on Metamucil?

No, we’re not aware of any special deals on Metamucil at the moment. However, the last few months many of our readers have been going crazy about Leptigen’s Special Trial Offer, which is just the cost of shipping and handling. Click here to give it a try.

Metamucil Ingredients:

We dug deep into the Metamucil ingredients to provide you with the specifics.

Psyllium Husk

First off, psyllium husk is essentially a form of fiber. It comes from the plantago ovata plant. The seed husks are used to make this ingredient. It’s commonly used in all sorts of supplements.

What is it Supposed to Do?

Put simply, psyllium husk is supposed to help promote regularity. Therefore it may help treat constipation. When combined with water, it has a bulking effect. This in turn helps encourage bowel movements. It also makes stool easier to pass. It may even lower cholesterol and blood sugar levels.

Clinical Research

According to the University of Maryland Medical Center, “The soluble fiber found in psyllium husks can help lower cholesterol. Psyllium can help relieve both constipation and diarrhea, and is used to treat irritable bowel syndrome, hemorrhoids, and other intestinal problems. Psyllium has also been used to help regulate blood sugar levels in people with diabetes.” This fiber can also help suppress appetite, which may assist some with weight-loss.

Clinical testing is an important part of the equation when it comes to choosing a diet supplement. You may want to take a look at a product like Leptigen. It contains some ingredients that have been researched.


Maltodextrin is a polysaccharide. It’s commonly added to foods, and it’s made from starch.

What is it Supposed to Do?

Well, Maltodextrin is often added to foods as a sweetener. It typically comes from corn or wheat. It’s simply used as a thickener, filler or flavor enhancer.

Clinical Research

There are no clinical studies that support Maltodextrin for health benefits. This ingredient is not linked to weight-loss at all. However, it may increase your chances of type 2 diabetes and weight gain.

Citric Acid

To begin, Citric Acid is taken from citrus fruits. It is also naturally produced in the body. This is because it’s needed for producing energy. It’s often added to foods and soft drinks.

What is it Supposed to Do?

Citric Acid is often added to pharmaceutical products and soft drinks as a preservative or flavor enhancer. It can be found in all sorts of meat products, jams, frozen foods, gelatins and canned vegetables. It also aids with mineral absorption and provides antioxidants to combat free radicals.

Clinical Research

One study from clincialchemistry.org showed that “Dietary citric acid enhances absorption of aluminum in antacids.” This in turn makes the products more effective. However, there is no connection between citric acid and weight-loss.

Is There Anything Out There That We Think TRULY Works?

We have our eye on a supplement that fits the bill. Leptigen, which is formulated with ingredients that HAVE been clinically tested, may be a good option. All customers can take advantage of a Special Trial Offer, currently available. Click here to give it a try.

74 User Reviews About Metamucil

Leave comments below
  • 1

    I just started taking metamucil to help keep me from feeling hungry all the time is been a full week i take it in the morning with 8oz of orange juice. But I’ve noticed i get these cramps an feel sleepy any suggestions? I’m only taking 1tsp once a day.


    Stephen (Editor)

    Hi, Bella! Because this product promotes bowl regularity you may feel discomfort in your belly as the formula takes effect. Try and visit the bathroom regularly. As for sleep, try coffee during your day after taking it.


  • 2

    I like the course metamucil best mixed with orange juice. All 4 of my kids like this same option. We all agree it taste like orange flavored runny grits. Lol many would say that’s a bad thing but it’s like drinking your breakfast or snack. The one thing I am most impressed with is it has REAL sugar in it. Not stevia or some other fake sweetners that I am extremely allergic to. I tried plexus, nutrisystem n several other diet products they all have fake sweetners yes including stevia. I had to be rushed to the ER after trying both plexus n nutrisystem. So I only buy products made with real sugar be it from cane or beets. Meaning labeled real sugar “sucrose” only


  • 3
    sherry smith

    I am drinking Metamucil because of hemorrhoid problems. It works as I don’t have to push hard anymore. Better than having another operation or using 10 tubes of anusol. Yes, it bloats me sometimes but other things do as well because I have the kind of digestion that does this. Works for me. The price is high so I may mix my own version with psyllium, flax, and oat bran and chug that back. Either way Metamucil is a good product and I don’t really believe the scare mongers about the ingredients. When you are a diabetic you appreciate the options in sweeteners. I don’t do sugar..


  • 4

    I have been taking metamucil for 5 years recently went off of it because got to being very bloated i mean looked like 7 mos pregnant after3 days off of this i have lost 4 pounds and don’t feel bloated hardly at all or look it so don’t really know wats going on


  • 5

    ive been taking this two to three times a day for three weeks and see no results but gas. After my daughter was born a year ago I’ve been constipated and tried this … About to give up , when should I stop if I’m not seeing results


  • 6
    Evedna Green

    I been using metamucil for almost four years….I have colon issues. It works great for me. I have to take this stuff for life. Doctors orders….


  • 7
    Billy in Bainbridge WA

    I have been taking this product for almost two years. It sure works for me. However, my dental health has suffered, i.e. Plaque buildup. Any thoughts.


    Arnold (Editor)

    We recommend asking your doctor.


  • 8

    I’ve been taking medamucil foe at least 15 years and wanna stop I tried for a couple of days and I really had to push to get my stool out know back on it I do wanna stop taking it is a little much $$$ is it to late know to stop..is my colon use to the soft stool know


  • 9

    Why am I throwing up in am from Metamucil


  • 10

    I am a had surgery to remove colon cancer. Now I always have loose e stool will Metamucil firm up stool.


  • 11
    jerry earle

    when do I need to take Medamucil? ie. 2 hours before or 2 hours after a meal. OR anythime theat is convient for me?


  • 12

    It seems I’m more constipated while taking Metamucil twice a day


  • 13

    Causes awful bloating and gas. Also, it doesn’t work. It’s disgusting to take, expensive, not recommend.


  • 14
    Your Name

    will it infere with warrafin drugs



    http://www.pdrhealth.com/drugs/zantac says not to take it but the University of Illinois Medical Center (excellence.acforum.org) says it is safe to take it – so go figure.


  • 15
    manuel marcus

    the dr. recommedned me take to this to bulk up my stool andnot nhave as many bowel movements a day. how do this work and how many does do i take to achieve this result? Thank you….


  • 16
    Robyn Toronto

    Lets be honest here, I used Metamuicil to cleanse and lose weight! But its so expensive and DOESNT WORK as well as the Lady Soma Fiber Cleanse. The Lady Soma Fiber Cleanse is cheaper than something like Metamucil. I don’t have IBS, but I do need to lose weight and take in more fiber. If I take fiber, it helps counteract the terrible results of the bad things I have eaten that day. Lady Soma is less expensive, and I found it more effective.


  • 17

    Is there a meta mucil with stevia ? I refuse to eat aspartame, but could use the fiber help


  • 18

    i take 2 mg coumadin every evening. does metamucil interfere with the blood thinner?


    Your Name

    Coumadin is an anticougalant


  • 19

    All this information is helpful to me, I bought some at Walmart this passed Saturday and add a teaspoon to my smoothie went didn’t weather well but I was able to get it down but I did get the sugar free and will be taking it back to get the regular one because as someone pointed out there is aspartame in it and I prefer not to use it with that ingredients in it.


  • 20

    I wanted psyllium fiber that was smooth but was disappointed that Metamulcil doesn’t make one without artificial sweeteners-if they Must add a sweetener, why not stevia? It is a natural leaf that’s been used safely for decades.


  • 21

    Hi, I am 33 and I was having trouble going to the bathroom about 5 years ago. My doctor suggested I try Metamucil one tablespoon a day. I have taken that dose everyday foe the last 5 years. I have never heard anything about it being dangerous or that it was necessarily a laxitive. I ran out for a few days and noticed that it was difficult to have a full BM. Is it not safe to take this daily as a fiber supplement? Is my body now dependent?


    Luke Cordero

    Over time metamucil will eventually make your body dependent as willaby laxative. Especially if youve taken it for 5 years every single day. Thats not good. I take it a few days like every two or three months and once it gets me going regularly i stop taking it and dont have problems for a while.


  • 22
    Tom McLean

    Do not use this product. It contains aspertame. If you want brain damage, by all means proceed. I took this for almost a year because it was recommended by a doctor to treat what they said was IBS. I didn’t realize it is sweetened with aspertame, probably the most dangerous substance in foods today. I’ve begun to recover my mental faculties, although I am worried about permanent damage. Stay away. Funny that the author doesn’t even touch on this in the review.



    That’s only in the sugar free formula. Just don’t use the sugar free Metamucil if you are concerned about Aspertame.
    Regular metamucil does not contain this artificial sweetener.



    I take Metamucil in the powder form each day. There is no aspartame in the product I take, there is however sucrose, which I believe is real sugar.



    Read labels. I have severe allergies to aspartame as well as stevia. Plexus n nutrisystem almost killed me. Simply cause I didn’t realize they had fake sweetners such as stevia n aspartame in them. I love metamucil cause it has real sugar n clearly says sucrose. Meaning sugar made from cane n beets. Do not give a generic warning to a product that has several options to choose from including the fake sweetners option.


  • 23

    Can Metamucil make your urine smell strong?



    I notice a big change in the odor of my urine when I take Metamucil or any brand of psyllium husk. I don’t know why so few people remark about this. The next time I go to the doctor, I’ll ask about it.



    I was specifically researching Metamucil for this exact reason. Ive been taking it for 2 weeks now and I have noticed a stronger odor to my urine.



    Love the Metamucil and have great results. I too have noticed a strong different odor in my urine and stool. What is the answer to this odor change?



    Your Name

    i would say if you have strong smell to your urine, you may have and std


    Your Name

    Bev and Robin,

    I have witnessed the same issue with strong smelling urine.At my recent physical this week I ask my Doctor and he seemed to think it was the Metamucil and not another health issue. What is the manufactor’s answer?



  • 24

    Metamucil improved my bowel movements. I am 55, so at an age where this is a concern. Started having unfirm, messy bowel movements for 3 months, to extreme diarhea for 2 weeks, to constipation. Wanted to get back to as much of normalcy as I could. The really cute Metamucil commercials with Suzi Barrett motivated me to try it. I did, & my bowel movements kicked back in, firmer albeit soft stool. I switched to the Equate brand for now, 1/2 price of the Metamucil, & cost is a major issue for me right now. Much improved on the bowel issue.


  • 25
    Mary h

    So I hate the taste texture of the sludge so I eat it like a pixie stick. Is this safe?



    DO NOT do that. that causes choking, take it with water. and plus if you don’t drink a glass of water with it, you won’t receive benifits from the fiber. fiber needs water to work.


    Your Name

    I use the capsules.


  • 26

    I bought the orange flavoured metamucil the other day and the flavour is so strong I almost gag. I use a heaped teaspoonful in a medium glass of water but I think a much larger glass would be more appropreate followed by a glass of water to rinse out my mouth.



    Try drinking the orange flavored metamucil in orange juice



    Orange metamucil in sugar free almond milk- tastes like a cream-sicle 🙂


  • 27

    how come the dosage for the fiber supplement is : one table spoon in 8 oz water, once to three times a day, and the dosage for the laxative is the same.


  • 28
    Cherry Grace walker

    Hi i hope anyone can help me i brought a metamucil simply clear and i combine it with water, im using it for 3 days now but i feel like its not working and makes me more constipated, please help me if does happened to anyone and if its only just start?…thank you.



    If you’re not used to fiber intake, you may want to reduce the dose. Sometimes going from a low-fiber diet to a high-fiber diet too quickly can cause a constipation effect.


  • 29

    I really loved Metamucil at the beginning, but maybe one month after taking it daily (one glass per day), my body just seemed to get used to it and i don’t see any benefits…


  • 30

    I just started taking metamucil and might stop, because it gives me such bad gas, too the point where i look much bigger than i am (I’m actually very thin) and the cramps are unbearable.. why might that be??? I only took one teaspoon in a HUGE glass of water and i drink a lot of water throughout the day…



    My doctor just told me to start taking Metamucil for constipation, and she said that it might initially cause bloating.


  • 31
    F. Jones

    I had high cholesterolof 235
    taking this product 3 times daily lowered it to 195. the
    medication was too harsh.the
    taste is good and it keeps you regular.eating salad at least 2 times daily also helps
    very good product.


  • 32

    Do I need to wait two hours before or after to take vitamins & supplements?



    I take my vitamins with meals. Then wait 2 hrs to take the metamucil. It absorbs everything in its path, so do not take them close together.


  • 33

    I Love the smooth formula. I noticed i can take it with just 8oz of water and i have a little more time befre it thickens up. Hate going to bed on an empty stomach so i just take some metamucil and i don’t want to binge at night. I have lost 5 pounds in a week!



    5 pounds a week seems a little miraculous- are you exercising as well? I too am a evening binge eater and would like to use this to control it. I’d be happy with 2lbs a week loss, lol


  • 34

    i onlyjust started drinking metamucil and find im not hungry at all during the day. i have it morning and night. i feel if i dont eat anything though it is bad as im only drinking a fibre drink. anyone have any advice and know some interesting info on metamucil that may help?


  • 35
    Don Owen

    Can metamucil be taken to help
    -loose bowel movements-what dose rec.?


  • 36

    I just started drinking metamucil and it really grosses me out that it turns into a gel almost. Does this happen to anyone else? What am I doing wrong??



    You aren’t adding enough water. One tablespoon per day with one very large glass (think a large soda size from MCDs). Stir quickly. Drink quickly. Letting it sit will make it gel. The extra fiber and all the water will make you not hungry for a few hours. But really the extra fiber will help lower cholesterol if you need that also.



    If you cant chug it down quickly (which I have trouble with) between drinks keep stirring it quickly, by doing this it will not clump together.



    I just started using it. The only way I can digest it. The water has to be ice cold. And it does not get thick quick. If you I chug it down. But my daughter tried it mixed in water that was not cold. And it thicken her her, she said it was gross.


  • 37

    If you put club soda in your metamucil drink it the club soda will hold the powder in suspension and not fall to the body. It makes a refreshing drink. No more gagging on the glug.



    I took a glass of water and put 3teaspoons of metamucul in it. After a kept peeing alot, and 3days later i do not feel nausaos anymore.


  • 38
    Elaine Martin

    My husband and I have been taking metamucil for several years. We have tried other kinds but we feel metamucil does the best job. However, I tried Berry Burst and it is downright nasty. The after taste stays with me and is not at all pleasant. I will go back to the orange flavor.


  • 39

    I love the new Pink Lemonade Metamucil. From what I have read with South Beach is that metamucil does not speed up the fat metabolism…but it simply prevents you from dumping too much fat and sugar into your system/blood stream at such a fast pace. Thus, it helps in decreasing the insulin flucuation that ultimately leads to stored fat.


  • 40

    Because metamucil has a lot fiber, can metamucil keep cholesterol level under control if someone is borderline with their level of cholesterol?


    Lynn Wagner

    I had seriously high cholestral & was on Crestor for 5 years,then started getting very ill & had many many fractures.So ill in / out of hospital, then googled METAMUCIL & haVe been on it for 3 months ( doctor now told me 2 weeks ago my cholestral count is 100% normal , I got off the “poison ” as it was taking away my life . Metamucil & lots of big salads daily WITH CABBAGE /HOME MADE BEANS & ANYTHING ELSE YOU CAN THROW IN IS THE BEST WAY TO GO . GOOD You can do this !


  • 41

    I was told Metamucil is good to help you if your stool is too loose too. Am I correct?? I go once normal then 3-4 times mushy. Will this help me?



    Metamucil will definitely help you with your problem. I know from experience.


  • 42
    Betty Judy

    I think Metamucil is really good and works well. Have used it for a number of years. But the new berry flavor is absolutely awful. It has a medicinal taste. Keep to the orange as you have really made it taste very good. I tried the other fiber Benefil and it does not get the job done.



    could anyone tell me if they experienced headaches taking Metamucil as I have major headaches and only since taking Metamucil but not sure if it’s caused by this would appreciate a reply thanks


    Diane Grover

    I don’t have migraines when I don’t have time to mix and drink Metamucil before going to work. This has happened three times. There may be a correlation.



    I am badly contipated Dr told me to take it bad cranks



    I too have noticed that Metamucil triggers Migraine headaches for me.


    Your Name

    Drink more water


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