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over 250,000 sold

Clinically-backed prebiotic fiber formulated to double GLP-1 levels, curb cravings, and promote regularity.

25% off for a limited time
25% off for a limited time
25% off for a limited time
25% off for a limited time

95%

of people are not getting enough fiber in their diets

Fiber is the most crucial but most overlooked nutrient. When you don’t get enough, your gut slows down, leading to bloating, cravings, irregular digestion, and stubborn weight gain.

flatter me enzymes get results:

2X

GLP-1 levels in just one use

2 INCHES

Reduce Bloat by up to 2” after 30 minutes**

4 hours

After 1 use, satiety stays high and cravings stay quiet for up to 4 hours

4.39 (2357 reviews)

Flatter Me Fiber GLP‑1 Booster

Clinically Backed Prebiotic Fiber formulated to double GLP-1 levels, curb cravings, and promote regularity.†
  • Clinically tested fiber doubles GLP-1 levels in just one use.†
  • Supercharged with Flatter Me enzyme blend to debloat fast and support digestion.**

Flavor: Strawberry Lemon

Quantity
1 pack = 40 tsp
Frequency
  • 35% off today, 20% off every future order
  • Stay on track with delivery every month
  • Free samples in every order
  • Ships monthly. Pause, modify, or cancel at any time.
35% off exclusive - today only

the expert behind the formula

“As a Registered Dietitian, one of the most common questions I hear is: How do I get my cravings under control?

What most don’t realize is that a low-fiber diet is often the root cause. That’s why we created Flatter Me Fiber GLP-1 Booster, to help you reach your fiber goals while supporting healthy GLP-1 levels, so you can finally take control of cravings.”

Gaby Vaca-Flores
In-House RD Nutritionist

ingredients
that deliver

The only Prebiotic Fiber GLP-1 Booster with 18 full-spectrum digestive enzymes + a triple herb blend

  • Prebiotic Fiber

    Prebiotic Fiber

    Clinically shown to double GLP-1, the satiety hormone, helping you curb cravings + appetite in just one use.†

  • 18 Full-Spectrum Enzymes

    18 Full-Spectrum Enzymes

    Break down food to support healthy digestion + reduce bloating*

  • Natural Triple Herb Blend

    Natural Triple Herb Blend

    Ginger, peppermint leaf and fennel seed soothe digestive issues + support nutrient absorption*

Higher standards, superior results.

Power pairings that boost metabolism and balance gut health*

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    Gut Instinct

    potent probiotic for balanced gut health*
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Your HUM, Your Way

Over 250K sold.
What people are saying:

4.39out of 5 stars
based on 2357 reviews
05/12/2025

I purchased one jar of the Flatter Me Fiber GLP1 Booster looking to see if it would reduce my cravings. So I took 4 teaspoons daily and after a week noticed that my cravings had diminished. The craving no longer won. I'd still have the action of getting up to look for something to fill the void but as I stood in my kitchen and looked at my normal go to options, I actively thought that I really didn't want ANYTHING. So I ordered 3 jars to see if I could actually curb it enough to lose some weight!!
Laura M.
Verified Buyer
05/11/2025

I've been using HUM Flatter Me Fiber for a few weeks now, and I can confidently say it's made a noticeable difference. The biggest benefit for me has been the significant reduction in bloating – something I've struggled with for years. Within just a few days of taking it consistently, I felt lighter and more comfortable after meals. Another unexpected but welcome effect is how it helps me feel full for longer. I've noticed a clear decrease in my snacking and overall caloric intake, which is a huge plus for anyone trying to manage their weight in a healthy, sustainable way. The supplement is easy on my stomach and has become a part of my daily routine.
Naomi V.
Verified Buyer
02/27/2025

Best fiber product on the market and here is why. It keeps me regular, does not upset my stomach, debloats, tastes great and while I was first suspicious about curbing my cravings it really does.
Willow
Verified Buyer

Higher Standards.
ALWAYS

  • Formulated by RD Nutritionists
  • Gold standard clinical studies
  • Clean Certified EU Standards
  • Kind to the planet

Frequently Asked Questions

  • How long can I expect to see results?

  • Is there a best time of day to take Flatter Me® Fiber GLP-1 Booster?

    You can take Flatter Me® Fiber at any time – but for noticeable improvements in hunger throughout the day, take with breakfast or lunch. Clinical studies show that 10 grams of prebiotic fiber can help you feel fuller for hours after eating*†

  • Is Flatter Me® Fiber vegan?

    Yes, Flatter Me® Fiber is vegan.


  • Is Flatter Me® Fiber gluten-free?

    Yes! All HUM products are gluten-free and tested to ensure gluten isn’t present at levels greater than 20ppm, which is the regulatory criteria for “gluten-free” set by the FDA.

  • Is Flatter Me® Fiber non-GMO?

    Yes! All HUM products are non-GMO.

Read study: Closing America’s Fiber Intake Gap

†10 g of prebiotic fiber (the amount in 4 tsp of Flatter Me Fiber) was clinically shown to increase GLP-1 2x 30 minutes after a meal and remain elevated for 4 hours compared to a placebo in a randomized controlled trial. Ye et al. Nutrition Research. 2015.

**Average ½” less bloating based on a placebo-controlled, crossover clinical study of 19 participants who took identical test meals, once with Flatter Me and once with a placebo. Each participant was assessed by waist circumference measurements.

Offer valid until 4/9/2026 at 11:59pm PST. Offer will automatically apply when subscription is processed. Valid for 30% off when you add a new product and the subtotal exceeds the previous order’s subtotal and meet the minimum order requirement of $49. Offer valid on https://www.humnutrition.com only. Offer valid on active subscriptions only.  Offer will apply on qualifying subscription orders with a ship date scheduled between 3/11/2026 and 4/9/2026. Offer may not be used in combination with any other promotion code and are for one-time use.  Offer may be used in combination with subscription discount and Buy three Saving discount. Offer may not be used in combination with third-party loyalty, reward, or cash-back programs. Offers cannot be applied to previously placed, or pending orders. Offers apply to authorized purchases only. Only authorized orders will be processed and shipped. We reserve the right to cancel any order due to unauthorized, altered, or ineligible use of the offer and to modify or cancel this promotion due to system error or unforeseen problems. Other restrictions may apply