Designing the easiest way to get your protein + fiber
Nearly 95% of US adults don't get enough fiber in a day.* Meanwhile, most protein products only solve half the equation: protein, with nothing for your gut.
Protein + Fiber closes both gaps in the same three-second shot with 20g of protein and 5g of fiber. Built on the same simple philosophy that drives every Pure Genius formula, we created a nutrition solution you can stick to every day.
*Based on a 2023 analysis of NHANES 2013–2018 data published in the British Journal of Nutrition.
You're not alone. Many of us are short on protein + fiber.
Digestion
Most of us eat about half the fiber we need, and gut health is the first place it shows. 5g of gentle soluble fiber keeps things moving and feeds the gut bacteria that keep you regular.
Busy mornings
Pure Genius Protein+fiber is a morning solution to get 20g protein and 5g fiber even on the busiest of days.
Afternoon crashes
A carb-heavy lunch and a 3pm slump. Fiber slows how fast sugar hits your blood; protein keeps you full through the dip.
GLP-1s
When appetite drops, protein and fiber can be the first things to go, and muscle loss and constipation often follow. Pure Genius Protein+fiber delivers both when a meal isn't happening.
Dieting
Many protein and fiber solutions can come with excess calories you would prefer to cut. At 100 calories (80% coming from protein), Pure Genius Protein+fiber can support many calorie restricted diets.
Sensitive stomachs
Shakes, bars and dairy leave a lot of people bloated. Pure Genius Protein+fiber has easily tolerated soluble prebiotic fiber, virtually zero lactose, nothing chalky and it sits light.
Protein and fiber rarely come together. Now they do.
The foods richest in protein have almost no fiber. The foods richest in fiber are low in protein or heavy in calories. Hitting both usually means two meals and a plan. We put protein + fiber in one shot.
Lots of protein. No fiber.
Protein + fiber, in three seconds.
Plenty of fiber. Little protein.
Our doctors designed a protein + fiber solution that fits real lives
Our doctors knew that if this was going to work, it had to be well tolerated. So they set out to make our product:
Easy and tasty
The research on habits is blunt: every extra step is another chance to quit. So we set the bar at three seconds. No shaker, no blender, no prep, no cleanup and no chalk. It had to taste good enough that you'd reach for it on the days you don't feel like it.
Sits light, even with fiber
Fiber can make you feel worse before it makes you feel better. FiberSMART® soluble tapioca fiber digests gently, so you can take it on an empty stomach or before a meeting.
100 calories, 5g fiber, 0g fat, 0g sugar
Protein and fiber with few extra calories.
No artificial flavors, dyes or sweeteners
We made sure to avoid artificial flavors, sweeteners and dyes so you can be comfortable taking this every day.
Gluten free & virtually zero lactose
Our researchers strived to make this a product that works even for sensitive stomachs.
Developed by doctors and scientists.
Dr. Eric Trexler, PhD
Duke, exercise science & nutrition
Eric Trexler is a Lecturing Fellow in the Department of Health, Wellness, and Physical Education and a Research Scholar in the Evolutionary Energetics & Ecology Laboratory. Eric received degrees in exercise science education (B.S.Ed, Ohio State University), exercise and sport science (M.A., UNC Chapel Hill), and human movement science (Ph.D., UNC Chapel Hill).
Dr. Amy Shah, MD
Physician, nutrition & hormone health
Dr. Amy Shah is a leading expert in the role nutrition plays in health, longevity, and hormone regulation. She has been in clinical practice for 22 years as a double-board certified medical doctor with specializations in nutrition, internal medicine, and immunology. She has a
degree in nutrition from Cornell University, completed her residency at Harvard University/Beth Israel Deaconess Medical Center, and her fellowship at Columbia University Medical Center. Dr. Shah is the author of two bestselling books about
nutrition, hormones, and lifestyle changes, and through her online education platform AmyMD, has helped millions of people to transform their health.
Jeff Karp, PhD
Biomedical engineer, MIT
Jeff Karp, PhD is a distinguished professor and among the world’s leading biomedical innovators and best selling author of LIT: Life Ignition Tools. Inspired by nature's ingenuity, he directs a lab dedicated to developing innovative medical technologies. Driven by a passion to improve patients' lives, his team has invented technologies that include a tissue glue that can seal holes inside a beating heart; targeted therapies for osteoarthritis, Crohn's disease, and brain disorders; 'smart needles' that automatically stop when they reach their target; a nasal spray that neutralizes pathogens; and immunotherapy approaches to annihilate cancer. He harnesses the power of failure, viewing setbacks not as obstacles, but as rocket fuel for
propelling his research and innovation forward. This philosophy has driven him
to continually push boundaries to publish over 175 peer-reviewed papers with over 40,000 citations. He has delivered 400 invited lectures and holds over 100 patents. He is a fellow of the National Academy of Inventors, Royal Society of Canada, the Royal Society of Chemistry, the American Institute for Medical and Biological Engineering, the Biomedical Engineering Society, and the Canadian Academy of Engineering. In addition to his research goals, Karp is dedicated to developing the careers of the next-generation bioengineers at the forefront of biomedical innovation. He was selected as the Outstanding Faculty Undergraduate Mentor among all faculty at MIT and he received the HST McMahon Mentoring award for being the top mentor of Harvard-MIT students.
Dr. Betsy Grunch, MD
Neurosurgeon, spine specialist
Dr. Betsy Grunch is a board-certified neurosurgeon who practices general neurosurgery, with a special interest in spine surgery. She was named by Castle Connolly as one of the top doctors in America in 2023, 2024, 2025 and 2026. Dr. Grunch travels across the country teaching other surgeons and healthcare professionals the latest, most innovative neurosurgical techniques along with the importance of brand building. She completed her residency and fellowship at Duke University Medical Center and millions know her online as @Ladyspinedoc, where her advice on spine health and pain relief has earned her over 192 million likes on TikTok alone.
Dr. Salas-Whalen, MD
Endocrinologist, GLP-1 specialist
Dr. Rocío Salas-Whalen is an endocrinologist and obesity medicine specialist, widely recognized as one of the earliest adopters of GLP-1 therapies in the United States. With over 15 years of experience treating thousands of patients, she has helped redefine obesity care, moving the conversation from willpower to science, and from stigma to empowerment. In her practice, Dr. Salas-Whalen combines cutting-edge metabolic science with compassionate, individualized care, with a particular expertise in helping women navigate menopause with strength, clarity, and vitality through evidence-based
hormone therapy, metabolic optimization, and lifestyle tools. She completed a fellowship in Endocrinology, Diabetes, and Metabolism at University of Maryland and was a research fellow in Obesity Surgery at John Hopkins University. She is also the author of the nationally bestselling book Weightless: A Doctor's Guide to GLP-1 Medications.
Dr. Lucia Aronica, PhD
Stanford, epigenetics & nutrigenomics
Dr. Lucia Aronica is an Adjunct Professor at Stanford University School of Medicine with nearly two decades of research experience in epigenetics and nutrigenomics, specializing in how food actively programs your genes. Her research, featured in the 2024 Netflix documentary You Are What You Eat: A Twin Experiment, demonstrated that targeted dietary changes can reverse biological aging by up to two years in just eight weeks. She created Stanford's first courses in nutritional epigenetics and developed the Epinutrition framework, a clinical approach that treats food as biological information. A TEDx speaker, she presents to over 10,000 clinicians annually.
Dr. Judith Joseph, MD
Psychiatrist, researcher & author
Dr. Judith Joseph MD MBA is a board-certified psychiatrist, researcher and award-winning content creator who specializes in mental health for children and adults. She is a professor and instructor at several prestigious academic institutions.
Dr. Judith is the Principal Investigator at her own research lab in Manhattan, which conducted the first peer-reviewed clinical research study in high functioning depression in the world. Her lab has conducted over 130 clinical research studies in psychiatry and neurology. Her National Bestselling Book “High Functioning” published in April 2025 is based on her original research and is now published in over 20 countries and over 17 languages.
Dr. Judith’s social media advocacy and research earned her a Congressional Proclamation award from the US House of Representatives in 2023. Her focus is how to reclaim joy as a form of resilience and resistance no matter what your setting is
Third-party tested By
Every batch is verified for heavy metals, microbials, plastic chemicals, and glyphosate before it ships.
The benefits of getting enough protein & fiber.
Stay strong as you age.
After 30, you lose your muscle every decade. Protein helps you keep it.
Lose fat, not lean mass.
On a GLP-1 or a diet, up to half the weight lost can be lean mass. Protein protects it.
Look your best.
Hair, skin and nails are built from protein. So is every repair your body makes.
Bounce back faster.
Healing, immune function and recovery from training all run on protein.
Keep things moving.
Fiber feeds the good bacteria in your gut and keeps you regular.
Steadier energy, all day.
Fiber slows how fast sugar reaches your blood. Fewer spikes, fewer crashes.
Protect the long run.
Higher fiber intake is linked to lower rates of heart disease, stroke, type 2 diabetes and colon cancer.
Feel full longer.
Fiber supports fullness and satisfaction between meals.
What powers our formula
We blend BLG, Collagen, and fortifying amino acids to create a high quality protein blend that packs an incredible amount of protein in just 3.38oz without being chalky or thick.
Most protein solutions require 12-16oz to pack the same amount of protein.
The fiber, explained
We use FiberSMART® soluble tapioca fiber because soluble fiber dissolves in water and slows blood sugar spikes, keeps you full, and feeds your gut bacteria.
Why 5g?
Most people need 25-38g of fiber per day. 5 grams is enough to make a big step toward hitting your goal without impacting the flavor or texture of the shot.
Why tapioca, not psyllium or inulin?
Inulin and chicory root can cause bloating due to their rapid fermentation, while psyllium is bulky and gritty. Tapioca-derived soluble fiber is among the best-tolerated sources that ferments slowly and dissolves fully with a juice-like texture.
Why soluble?
It dissolves smoothly, sits light in a drink, and feeds your healthy gut bacteria while providing all the benefits of dietary fiber.
Our protein has all 9 essential amino acids your body can't produce on its own.
Our formula targets the FAO's 2013 standard for high-quality protein, shown here per 20g of protein.
Why this matters: Leucine is the primary signal for muscle protein synthesis. More leucine per gram means more signal per shot.
How every Pure Genius formula is built
Our advisory board of physicians and researchers reviews the formulation for dosing, safety, and scientific rationale before anything goes to production.
✓ We formulate above our label claim, not at the minimum — every shot is built to deliver at least what the label promises.
✓ Every batch is tested by an independent third-party lab for heavy metals, pesticides, and microplastics before it ships.
✓ We partnered with Light Labs, so you can check the results yourself rather than take our word for it.
20g protein per shot
5g fiber per shot
100 calories, nothing more
No artificial sweeteners
0g fat, 0g sugar
Third-party testedThe standards we hold every shot to, no exceptions.
Sourcing premium ingredients
We source ingredients from trusted suppliers to ensure quality and purity, verified further by third-party testing of our final products.
Manufacturing excellence
Manufactured in FDA-registered facilities that hold rigorous food safety certifications such as FSSC 22000, requiring regular audits.
Continuous innovation
We consistently refine our formulations and manufacturing processes by incorporating cutting-edge research and industry best practices, guided by insights from our customers.
Dedicated support and service
Your experience matters to us. Our responsive support team stands ready to address any inquiries or concerns about our products and their performance.
Built for your muscles and your gut
Our commitment to education
We publish blogs that show how small daily changes lead to big benefits. Read more below.
Why Strength Is the New Longevity Metric: What Your Grip Tells You About Your Future
A neurosurgeon on why your strength is a window into your overall health, what...
Fast vs slow weight loss: what the science actually says about the right pace
A Stanford nutrigenomics researcher on what really predicts long-term success, and why your pace...
How Many Steps a Day Actually Support Weight Loss? (The Honest Answer)
A board-certified neurosurgeon on what 10,000 steps was really invented for, and what the...
Protein + Fiber
20g protein, 5g fiber, 100 calories
For protein and the fiber you're probably missing.
We built the protein + fiber you'd actually stick with.
Most protein routines fail for the same reason: they ask too much on a normal day. Pure Genius Protein + Fiber doesn't. Three seconds, no mixing, no aftermath.
A habit you keep beats a routine you eventually quit.
Protein and fiber that dissolves clean
Protein and fiber with no sugar
Protein and fiber for 100 calories
Protein and fiber that doesn't spoil
Protein and fiber that needs no prep
Protein and fiber that sits lightFrequently Asked Questions
How is this different from a protein shake?
A typical shake is 12-16oz, a blender and a 50/50 chance of feeling sluggish after. Pure Genius Protein is 3.38oz, 20g of protein and requires none of the production.
Is it right for me if I'm on a GLP-1?
Pure Genius Protein can be a great solution for patients on GLPs. It delivers 20g of high quality protein in 3.38 fl oz, which is a small volume that is easy for many people to tolerate when their appetite is reduced.
How much protein do I actually need per day?
Many adults benefit from 0.7-1g of protein per pound of body weight per day spread across meals.
Why does protein matter more as we age?
After 40, we lose muscle faster than we build it. Higher protein intake and leucine specifically help preserve lean mass.
How is the protein content verified?
Every batch is independently tested by Light Labs — protein content, heavy metals, microplastics, and contaminants.
