Fiberlyze Mango - Front
Fiberlyze Mango - Hero Dark
Fiberlyze Fruit Punch - Front
Fiberlyze Fruit Punch - Hero Dark
Fiberlyze - Benefits
Fiberlyze Mango - Supplement Facts
Fiberlyze Fruit Punch - Supplement Facts
Fiberlyze - Highest Potency
Fiberlyze - Us vs Them
Fiberlyze Mango - Back
Fiberlyze Mango - Side
Fiberlyze Fruit Punch - Back
Fiberlyze Fruit Punch - Side
Fiberlyze Mango - Front
Fiberlyze Mango - Hero Dark
Fiberlyze Fruit Punch - Front
Fiberlyze Fruit Punch - Hero Dark
Fiberlyze - Benefits
Fiberlyze Mango - Supplement Facts
Fiberlyze Fruit Punch - Supplement Facts
Fiberlyze - Highest Potency
Fiberlyze - Us vs Them
Fiberlyze Mango - Back
Fiberlyze Mango - Side
Fiberlyze Fruit Punch - Back
Fiberlyze Fruit Punch - Side

Species Nutrition

Fiberlyze

POTENCY FIBER. TOTAL GUT SUPPORT

Your performance starts from within — and FIBERLYZE™ makes sure your digestive system is working as hard as you are. Powered by psyllium-based fiber that's 8–12x more potent per gram than the competition, FIBERLYZE™ promotes regular bowel movements, supports heart health, and keeps your gut running like a well-oiled machine. Zero sugar. Zero fat. Zero excuses.

Flavor (2/2 Available)
  • Mango
  • Fruit Punch
  • Delivery during sell-outs
  • Free gifts on select subscription months
  • Early access to promotions
  • Pause or cancel anytime

by logging into your account and clicking 'Subscriptions'

One-time Purchase

No commitment · Full price

$32.99

Made in USA

Third-Party Tested

Gluten Free

Non-GMO

9G Fiber Per Serving

Zero Added Sugar

0 Net Carbs

Psyllium-Powered

Heart Health Support

Made in USA

View full details
Fiberlyze Mango - Front

Fiberlyze

30 Servings / Mango

$32.99

Why Fiberlyze

The Gains You'll Feel

Engineered for athletes who know that gut health is the foundation of peak performance.

Sourced in the USA

Formulated and manufactured domestically with full traceability from raw material to finished product.

Complete Fiber Profile

Full spectrum of soluble and insoluble fiber at clinically relevant doses — nothing underdosed, nothing hidden.

Gluten & Allergen Free

Safe for athletes with dietary restrictions — no gluten, no major allergens getting in the way.

Third-Party Tested

Every batch independently verified for purity, label accuracy, and banned substance screening.

9g Fiber

0g Sugar

0g Fat

0 Net Carbs

Psyllium-Powered

Heart Health

The Science

Why It Works

Fiberlyze Mango - Hero Dark

Nutrient

Per Serving

Amount

Total Carbohydrate

Per 12g serving

9g

Dietary Fiber

Per serving

9g

Soluble Fiber

Per serving

8g

Insoluble Fiber

Per serving

1g

Sugars

Per serving

0g

Sodium

Per serving

0mg

Psyllium-Based Fiber — 8–12x More Potent

Built on psyllium-based fiber — a clinically studied powerhouse that delivers 8–12x more potency per gram than other soluble and insoluble fibers on the market.

Total Gut & Wellness Support

Optimizes energy levels, eases digestion, supports weight management, and promotes heart health — all from a single scoop.

Batch-Level Purity Testing

Every single batch independently tested for heavy metals, contaminants, and label claim accuracy before it ever ships.

What Makes Us Different

Overview

See how we compare on clinical dosing, ingredient transparency, and overall formulation.

Ingredient
FiberlyzeFIBERLYZE™
Other IsolatesMetamucil Psyllium Fiber
Whey ConcentrateKonsyl Daily Psyllium Fiber

Total Dietary Fiber

9g

2.4g

6g

Soluble Fiber

8g

2g

5g

Insoluble Fiber

1g

0.4g

1g

Total Carbohydrates

9g

~5g

6g

Sugars

0g

1-3g

0g

Fat

0g

0g

0g

Calories

~37

~10

~24

Swipe to see more

Got Questions

Frequently Asked

FAQ

How do Species products compare to other major brands?

Most brands use proprietary blends to hide underdosed ingredients and cut costs. We list every single ingredient with exact doses — no blends, no BS. You're paying for active compounds backed by clinical research, not marketing fluff. FIBERLYZE™ delivers 9g of dietary fiber per scoop — nearly 4x what Metamucil gives you. Do the math.

Are there any artificial sweeteners or additives?

FIBERLYZE™ uses sucralose and acesulfame potassium for flavor without adding sugar or calories. Zero sugar, zero fat, zero net carbs — just clean, effective fiber. If you're cutting weight or watching your macros, this fits right in without messing up your numbers.

Can I take more than the recommended dosage of FIBERLYZE™?

Start with one scoop and let your body adjust. If you're looking to increase your daily fiber intake beyond one serving, ramp up gradually over a few days and make sure you're drinking plenty of water. Psyllium absorbs a lot of liquid, so hydration is key for optimal results and comfort.

Are these products safe for drug-tested athletes?

Yes. Every batch is third-party tested for banned substances and contaminants. We take this dead seriously — our athletes compete at the highest levels and can't afford a tainted supplement.

Why are your prices higher than some competitors?

Because we use clinically effective doses of premium-grade psyllium husk fiber. A cheaper product with 2g of fiber and a bunch of sugar isn't a bargain — it's a waste of your money. With Species, you get 9g of actual dietary fiber per serving. You get what you pay for.

Can I take these products year-round?

Absolutely. FIBERLYZE™ is designed for consistent, daily use. In fact, the benefits of regular fiber supplementation compound over time — better digestion, improved regularity, and long-term heart health support.

How long does my subscription commitment last?

There's no commitment. Cancel, pause, or swap anytime. Subscribe & Save just locks in your discount — no strings, no contracts, no games.

What if I don't like it?

Hit us up. Our customer service team stands behind every product we make. If FIBERLYZE™ isn't for you, we'll make it right. No excuses, no runaround.

SIMILAR PRODUCTS

1 14
  • 5 stars: 169 (70%)
  • 4 stars: 17 (7%)
  • 3 stars: 9 (4%)
  • 2 stars: 9 (4%)
  • 1 star: 37 (15%)
A
Alex (US Army Veteran)

Fiberlyze has literally saved my life. As a veteran with medical issues including serious digestive problems many years and many medications led to almost no relief. Nothing has improved the quality of my issues more than Fiberlyze. Thank you very much.

Alex (US Army Veteran) review photo
A
Anthony Durando

A friend turned me on to this product and everything's been smooth sailing since. I have recommended Fiberlyze to at least 10 others whose lives have also changed for the better. Thank you Fiberlyze for slipping goodness into my life and helping the bad slip out.

Anthony Durando review photo
N
Noelani R
New and updated update

First review:I'm still nee to this product and I will hopefully update my review throughout the weeks. First serving was taken this morning and i was a little caught off guard by the thickness so next time I will drink it right after I mix it instead letting it set. Either way to combat the thickness I just added 20 total ounces and that was enough to drink. Its not as bad as some say. In my opinion is not the worst thing I've ever had. Plus if your main argue point is taste then supplements will always be hit and miss for you. Get something that works for your body and stick with it. Will update date through out the weeks.New review:I'm back to order more because this stuff rocks. I never had the issue with it turning into Apple sauce after consistently adding 20z versus what it recommends per the label. I drink this with another product and it's by far the best combination of supplements and super tastey. I feel refreshed after drinking it each time and actually look forward to it.

Noelani R review photo
J
John Kallal

Got my first shipment of products and just took my fruit punch Fiberlyze before bed. Great taste! I'm in love. Keep up the great work!

John Kallal review photo
L
Lauren DiTucci RN

Fiberlyze changed my life. I'm teasing (but it really did) and I love the entire line.

Lauren DiTucci RN review photo
R
Royce Palazzo
30 Servings / Mango

Best fiber supplement available.

A
Anonymous
30 Servings / Fruit Punch

love it, it works great, no bloating

C
Collin LaRose
30 Servings / Mango

Fiberlyze is the only product that works the best for my digestive system. Once in the morning and early evening and my bathroom habits are always the same. If I go off it for more than a day I’m not good. I will use this product forever.

J
John Broughton
30 Servings / Fruit Punch

Best Fiber Ever!
Flavors are great and even the kids like it!! Thanks for the superb product!!

L
Leann R George
30 Servings / Fruit Punch

I don't leave home without it. Fiberlyze has been a game-changer since I incorporated it into my regimen.

M
Marc Smith
30 Servings / Mango

Excellent product have been using it for years.

T
Tracey Russell
30 Servings / Mango

Awesome stuff! If I could only buy one supplement, this would be the only one! Outperforms ANY other fiber supplement on the market. AAAAA+++++

K
Kelvin McLain
30 Servings / Fruit Punch

Great product been using it for a couple of years now it's part my daily routine along with v-mineralize and omga-lize Dave Palumbo puts what the ingredients say is in there you can believe they are in there

T
Tron Hatley
30 Servings / Mango

Aweaome!!!

M
Mark Castille
30 Servings / Fruit Punch

Great health product and been a game changer for me.

A
Anonymous
30 Servings / Fruit Punch

Great product. Awsome taste

H
Hannah
30 Servings / Mango

10 stars! The best fiber supplement and crucial if you truly care about your health. I’m a bodybuilder and this stuff keeps me healthy. No matter what you’re doing in life if you care about your gut health it’s a necessity. I love all species products but this is by far my best and Dave is a great coach!

A
Anthony Heymach
30 Servings / Fruit Punch

Use it every day. Absolutely essential

I
Ivan S Celebrado
30 Servings / Mango

I love it really helps going to the bathroom, taste like the fruit that I eat in Hawaii

T
Todd Stoll
30 Servings / Fruit Punch

This stuff will change your life. Awesome

g
gary thunberg
30 Servings / Mango

Your product is amazing I have been taken it for a while now and I love this stuff… it helps with my diet and keeps me emptied out… thanks Gary

T
Todd Stoll

Tastes good and does exactly what it is meant to do.

S
Shannon Ford
30 Servings / Fruit Punch

This I was a game changer for me, This is the only fiber I have found that works. I have regular ease stool and o look leaner when I use this.

J
Justin Geibe
30 Servings / Mango

My go to every day fiber supplement! Helps me stay regular 👍🏼

B
Brian Blinstrup
30 Servings / Fruit Punch

I have used Fiberlyze for years. It is part of my daily ritual to maintaining my health and fitness. One of the best products I have ever used and will continue to use for years to come.

F
Frank Lucca
30 Servings / Mango

WOW, Best fiber supplement ever. Thanks Dave! Frank Lucca

T
Tanya Hazeltine
30 Servings / Fruit Punch

Best fiber supplement hands down

C
Cyn B
30 Servings / Mango

First time user, refered by personal coach. Exceptional amd tasty

A
Andrew Cortes
30 Servings / Fruit Punch

Best product ever

H
Hank Burke
30 Servings / Mango

Game changer ! Since purchasing it’s a great source of fiber tastes great and perfect results
Highly recommended