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Nella – The Performance Probiotic

Rated 4.8 out of 5 stars
4.8 Stars (103 Reviews)

Designed by Harvard scientists, our daily clinically-backed probiotic helps improve sleep quality, energy and gut health. Nella is a next-gen probiotic made with FitBiomics patented Lactobacillus strains decoded from the healthiest people in the world.

Take your gut health to the next level for physical

and mental well-being.

Clinically validated benefits

69% Improved

Sleep Quality

37% Optimized


31% More


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30 Day Risk Free

Clinically Validated Benefits



Sleep Quality

Nella reduces oxidative stress to support significant improvements in sleep quality, critical for the body’s ability to stay healthy. 




It also provides enhanced gut microbiome health & delivers improved bowel movements & digestive comfort.




It improves the free testosterone to cortisol ratio, associated with recovery from physical strain, & provides a natural boost in energy.

Kind words from our community!

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not all probiotics are
created (or sourced) equally

Decoded From Elite Adult Microbiomes

Most probiotics use strains that are decades old and sourced from food, soil, & baby poop. Nella is decoded & translated from our society's healthiest people.

"We identified the fittest & healthiest people in the world that represent the 0.01% of the human population in terms of optimal health and physiology. We decode their microbiomes and translate that biological information into next-generation health solutions for everybody." -Dr. Jonathan Scheiman, Founder & CEO

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Within A Few Days

With our delayed-release capsule, our probiotic strains will reach your gut intact and begin to populate your microbiome.

*Side effects like mild gas, bloating, or more frequent trips to the bathroom are most common at this time as Nella optimizes your microbiome and usually subsides within a week.

Within 2 Weeks

Your body will adjust to the consistent introduction of our exclusive probiotic strains - your digestion should become consistent, and your sleep may start to feel deeper.

Within 1 Month

Alongside a healthy diet and taking Nella regularly, you could begin to feel more energized, focused, and have better quality sleep. You should notice overall improved wellness.

After 3 Months+

Daily use for an extended amount of time will sustain the effects you feel with your sleep, energy, digestion, and recovery to empower your healthier lifestyle.

Rated 4.8 out of 5 stars
Based on 103 reviews
Total 5 star reviews: 87 Total 4 star reviews: 10 Total 3 star reviews: 4 Total 2 star reviews: 1 Total 1 star reviews: 1
94%would recommend this product
103 reviews
  • K
    3 months ago
    Rated 5 out of 5 stars
    5 Stars

    Has improved my gut function immensely. I am sleeping better and have more energy. I definitely will continue this probiotic!

  • BP
    Bob P.
    Verified Buyer
    5 months ago
    Rated 5 out of 5 stars
    Major Bob P USMC retired

    Only after a few weeks my digestive system went into a different mode. At age 76 I was regular again! Also at my age still burning it at the gym 3 tines a weeks plus softball and golf!!!!

  • CR
    Claire R.
    Verified Buyer
    8 months ago
    Rated 5 out of 5 stars
    Great for IBS and CFS

    Fantastic, my guts are so improved! I have had IBS and CFS for nearly 20 years and decided to give Nella a try. It’s definitely helping my overall energy a bit. I hope it continues to. But the difference to my IBS has been utterly life changing. It’s beyond brilliant.

    International shipping is a tad cripplingly expensive, but fitbiomics did find a cheaper way to ship to me in the UK and refunded the difference when approached which is hugely appreciated.

  • JC
    Jeff C.
    Verified Buyer
    9 months ago
    Rated 4 out of 5 stars
    Very effective…but pricey

    I live this product! It’s made a big difference in my sleep and in my workouts. But it is very, very pricey. As a retired senior on a fixed income, I don’t know how long I can afford to purchase it😔

  • A
    9 months ago
    Rated 1 out of 5 stars
    1 Star

    Felt no different

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