Citrucel Shortage? Why Major Fiber Therapy is the Best Generic

Citrucel Shortage? Why Major Fiber Therapy is the Best Generic

Team Xeteor
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Major Fiber Therapy Powder Methylcellulose Orange Flavor - 16oz (Citrucel)

Dealing With the Citrucel Shortage: A Look at Major Fiber Therapy as an Alternative

Citrucel, a commonly used methylcellulose fiber supplement, has been harder to find on store shelves lately and has been in out of stock in many locations. The Citrucel shortage has left many searching for an alternative way to maintain their fiber intake.

One option is Major Fiber Therapy Methylcellulose Orange Powder - a generic version of Citrucel with the same active ingredient (methylcellulose). Here's a look at how Major Fiber Therapy compares:

Major Fiber Therapy: Active Ingredients

Like Citrucel, Major Fiber Therapy contains 2,400mg methylcellulose per serving, providing 2g of dietary fiber. This is the same type and amount of fiber found in name brand Citrucel. See full drug facts label for Major Fiber Therapy at the end of this article. 

Drug Facts Label: Citrucel vs. Major Fiber Therapy

Product Active Ingredient Inactive Ingredient
Citrucel Sugar Free Methylcellulose (a non-allergenic fiber) 2g Aspartame, dibasic calcium phosphate, FD&C yellow #6 lake, malic acid, maltodextrin, orange flavors (natural and artificial), potassium citrate, riboflavin
Citrucel Methylcellulose (a non-allergenic fiber) 2g Citric acid, dibasic calcium phosphate, FD&C yellow #6 lake, maltodextrin, orange flavors (natural and artificial), potassium citrate, riboflavin, sucrose, titanium dioxide, tricalcium phosphate
Major Fiber Therapy Methylcellulose (a non-allergenic fiber) 2g Citric acid, FD&C yellow 6 aluminum lake, maltodextrin, flavor (natural and artificial), potassium citrate, silica, sucrose

**Please note Major Fiber Therapy has sucrose in the inactive ingredients. If you need 100% sugar free, this product may not work for you.

Major Fiber Therapy: Effectiveness

According to customer reviews, Major Fiber Therapy provides comparable results to Citrucel in terms of relieving constipation. Many consumers report it regulates their digestive system the same way as the name brand. The product is made in the United States and has passed the same rigorous FDA standards as the brand Citrucel.

Major Fiber Therapy: Taste

Major Fiber Therapy has an orange flavor, similar to common Citrucel products. Users describe the taste as mild and relatively neutral. If you're looking to improve the taste, you can try some of the tips listed here: Citrucel: 10 Ways to Make It Taste Better. If you're concerned about "clumping", you can also try some of the tips listed here: How to Mix Citrucel Without Clumps: Easy Tips and Tricks.

Major Fiber Therapy: Reviews

With 170+ reviews, Major Fiber Therapy has an average rating of 4.2/5.  You can view the latest reviews here (under the product image).

"A real find"

December 15th, 2023

  • I have been looking for Citrucel for months in the stores and have been unable to find it. I learned that methylcellulose is in short supply for some reason, and that they manufacturer will not be making it for quite some time as they are having factory problems. 
  • I tried the Citrucel caplets, but they were not as effective. I then tried Metamucil, but that caused serious gas and bloating, so gave up on it after a few weeks. 
  • I was delighted to find this site that had a generic version of orange flavored methylcellulose, so figured I'd give it a try. Although the orange flavor is pretty hard to detect, the product works just like Citrucel. The texture is more course, and tended to get clumpy when mixed with water, so I put it in my spice grinder and ground it into more of a powder, and it works beautifully. No lumps, it's and much easier to swallow. 
  • If powdered Citrucel ever comes back on the market, I may just stick with this brand anyway. I have had intestinal problems for years, and regular use of methylcellulose has been a boon to me. Thank you for making this product available during the Citrucel shortage.

"Good stuff that works!"

December 10th, 2023

  • Works great, tastes great. Love it! It clumps a little more than the Citrucel I used to use, but if you follow the directions, there are ways to fix that. Great stuff! And especially with the current shortage of Methylcellulose out there, this was a great find! Thanks!

"Same as Citrucel"

December 2nd, 2023 

  • Excellent source of fiber, no side effects common with psyllium husk. Blends easily with orange juice for those who know how to use a spoon.

See also:  Major Fiber Therapy: A Summary of Online Reviews, Questions, and Tips.

Major Fiber Therapy: Availability

While the Citrucel shortage has reduced availability of the brand name, Major Fiber Therapy has more consistent availability through online outlets and select retailers. Availability can vary by location.

Major Fiber Therapy: Cost

Major Fiber Therapy is typically priced lower than the Citrucel name brand. A 16 oz jar costs $ 15.99 with free shipping. Buying in bulk will save you money as you can buy 2 for $24.98 ($12.49 per jar), 4 for $44.96 ($11.24 per jar), 8 for $84.96 (10.62 per jar), and 12 for $119.88 ($9.99 per jar). This makes Major Fiber Therapy a budget-friendly option during the Citrucel shortage.

Major Fiber Therapy Methylcellulose Powder Pricing

# of Jars Price* Total Savings
1 $15.99 $15.99 -
2 $12.49 $24.98 21.9%
4 $11.24 $44.96 29.7%
8 $10.62 $84.96 33.6%
12 $9.99 $119.88 37.5%

*Price includes FREE Shipping

Where to Buy / Return Policy offers a 100% satisfaction guarantee and you may return the product up to 100 days. has no restocking fees and also covers your return shipping cost so that you may try Major Fiber Therapy risk free.  This is a non-returnable product at both Amazon and Walmart.  eBay returns vary by seller.

For those relying on methylcellulose fiber during the Citrucel shortage, Major Fiber Therapy may be a suitable alternative to consider until the Citrucel shortage eases. However, as with any supplement, consult your doctor before trying a new fiber brand.

About, started in 2018 is based in Las Vegas, Nevada and is online pharmacy focusing on discount over-the-counter generic medications including Major Fiber Therapy Methylcellulose Orange Powder and diabetic test strips. We find deals normally reserved for "big pharma" and offer them to the consumer at discount prices. Ranking as the #1 authorized online reseller of Rugby Laboratories products according to, has 8,000+ 5-star reviews online, including Amazon, eBay, Trustpilot, and Google. is a Google Top Quality Store, earned by merchants that provide a great shopping experience.

Shipping Time & Cost

All items ship same day when purchased by 3 pm PST Monday - Friday. We offer free shipping nationwide with no minimum order. Shipping times are between 3 to 8 business days, with an average of 3.3 business days. A link to our full shipping policy is here.

Payment Options

We offer multiple convenient payment options, including Visa, Mastercard, Discover, American Express, Google Pay, Apple Pay, PayPal and Venmo.

Return Policy

We offer a 100% satisfaction guarantee. If you are not satisfied with the product, you may return it up to 100 days from the date of purchase. We offer free return shipping to ensure you can try the product risk free. A link to our full return policy is here.

How to Reach Us?

If you have questions about the product or need assistance, we are happy to talk on the phone. Call us at 1-833-787-4777 between 9 am - 5 pm PST Monday - Friday. You can also email us at [email protected] or text us at 702-659-7022. A link to our full contact us page is here.

Major Fiber Therapy Powder Methylcellulose Orange Flavor - 16oz (Citrucel)

Full Drug Facts Label for Major Fiber Therapy (Citrucel)

Active Ingredients

  • Methylcellulose - 2g (a non-allergenic fiber)
  • Purpose: Bulk-Forming Fiber Laxative


  • Relieves constipation (irregularity)
  • Helps to restore and maintain regularity
  • For treating bowel disorders when recommended by a doctor
  • Generally provide effect in 12-72 hours


    • Taking this product without adequate fluid may cause it to swell and block your throat or esophagus and may cause choking
    • Do not take this product if you have difficulty in swallowing
    • If you experience chest pain, vomiting, or difficulty in swallowing or breathing after taking this product, seek immediate medical attention
  • Ask a Doctor Before Use if You Have
    • Abdominal pain, nausea or vomiting
    • A sudden change in bowel habits that persists over a period of 2 weeks
    • Sensitivity to any of the ingredients
  • Stop Use and Ask a Doctor If
    • You have rectal bleeding
    • You fail to have a bowl movement after use
    • These could be signs of a serious condition
  • Keep Out of Reach of Children
    • In case of overdose, get medical help or contact a Poison Control Center right away at 1-800-222-1222
  • When Using This Product
    • Do not exceed recommended maximum daily dose unless directed by a doctor
    • Do not use laxative products for a period longer than one week unless directed by a doctor


  • Use product at the first sign of constipation or irregularity
  • Put one dose in a full glass of cold water
  • Stir briskly and drink promptly
  • Drinking another glass of water is helpful
  • Adults & Children Above 12 years of age and over
    • One rounded tablespoon
    • (19 g) in 8 ounces of water fluid up to 3 times daily at the first sign of constipation or irregularity
  • Children 6-12 Years of age 
    • Half the adult dose in 8 ounces of water once daily
  • Children under 6 years of age
    • Ask a doctor

Other Information

  • Each adult dose contains approximately
  • 3mg of sodium
  • 105mg potassium
  • Contributes 60 calories from sucrose and sorbitol
  • Store at room temperature
  • Protect contents from humidity
  • Keep tightly closed

Inactive Ingredients

  • Citric Acid, FD&C Yellow 6 Aluminum Lake, Maltodextrin, Flavor (natural and artificial), Potassium Citrate, Silica, Sucrose

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