Beet Kvass: The Ancient Tonic Backed by Modern Science

Beet Kvass: The Ancient Tonic Backed by Modern Science

For centuries, beet kvass has been enjoyed throughout Eastern Europe as a traditional fermented drink. Today, modern research is uncovering some fascinating reasons why this vibrant tonic is gaining attention among health professionals, athletes, and longevity enthusiasts.

Rich in naturally occurring nitrates, antioxidants, and beneficial compounds produced during fermentation, beet kvass may support everything from exercise recovery and cardiovascular health to gut health and healthy ageing.

Why Beet Kvass Is Different

Unlike beetroot juice, beet kvass undergoes a fermentation process that transforms the humble beet into something even more unique.

During fermentation, beneficial bacteria help create organic acids and other compounds that can support digestive health and microbial diversity. This is important because researchers now recognise that the health of our gut microbiome influences far more than digestion alone. It plays a role in immunity, inflammation, metabolism, and even healthy ageing.

In fact, some scientists now refer to the gut microbiome as a "forgotten organ" because of its powerful influence on overall health.

The Longevity Connection

One of the most exciting areas of beetroot research centres around a molecule called nitric oxide.

Beetroot is naturally rich in dietary nitrates, which the body can convert into nitric oxide. This molecule helps blood vessels relax and widen, supporting healthy circulation and oxygen delivery throughout the body.

Why does that matter?

As we age, our natural production of nitric oxide declines. This reduction is associated with changes in vascular function, energy production, and cardiovascular health. Supporting nitric oxide production through foods rich in nitrates may help maintain healthy blood flow and support overall wellbeing as we get older.

A Fascinating Fact

The process actually starts in your mouth.

Specific bacteria living on the tongue help convert dietary nitrates into forms that the body can use to make nitric oxide. Without these bacteria, many of beetroot's benefits may be reduced.

Another reminder that good health truly starts with our microbiome.

Beet Kvass and Exercise Recovery

While many people focus on protein after exercise, recovery is about much more than rebuilding muscle.

Healthy circulation, nutrient delivery, inflammation management, and cellular energy production all play important roles in how well we recover and perform.

Research has shown that beetroot may help improve exercise efficiency, endurance, and recovery by supporting oxygen delivery to working muscles. Some studies have even demonstrated improvements in exercise performance ranging from 1-16%, depending on the individual and type of activity.

Beetroot also contains powerful antioxidant compounds called betalains, which give beets their beautiful deep red colour. These antioxidants help combat oxidative stress produced during exercise and may support the body's natural recovery processes.

Did You Know?

Emerging research suggests beetroot may improve the efficiency of mitochondria — often referred to as the "powerhouses" of our cells.

Mitochondria are responsible for producing the energy that powers everything we do. Supporting their function is becoming a major focus in both performance and longevity research.

A Simple Habit With Big Potential

What makes beet kvass so appealing is that it brings together several important pillars of health in one daily habit:

  • Supports healthy nitric oxide production
  • Provides powerful antioxidant compounds
  • Delivers the benefits of a fermented food
  • Supports gut microbial diversity
  • May assist exercise recovery and performance
  • Contributes to cardiovascular health and healthy ageing

While no single food is a magic bullet, beet kvass is a wonderful example of how traditional foods can deliver benefits that modern science is only beginning to fully understand.

Why I Recommend It

As a naturopath and clinical nutritionist, beet kvass is something I regularly include in client wellness plans. Whether we're focusing on metabolic health, energy, exercise recovery, gut health, or healthy hormones, it can be a simple and practical addition to a daily routine.

Personally, I couldn't imagine a day without it. It's one of those small habits that has become a non-negotiable part of my own health routine, and it's something I recommend often because it's simple, evidence-informed, and easy to incorporate into everyday life.

 

Guest written by Steph Pearson, Registered Naturopath & Nutritionist
Check out Steph's website here

References

Clifford T, Howatson G, West DJ, Stevenson EJ. The Potential Benefits of Red Beetroot Supplementation in Health and Disease. Nutrients. 2015;7(4):2801-2822.

Domínguez R, Cuenca E, Maté-Muñoz JL, et al. Effects of Beetroot Juice Supplementation on Cardiorespiratory Endurance in Athletes. A Systematic Review. Nutrients. 2017;9(1):43.

McMahon NF, Leveritt MD, Pavey TG. The Effect of Dietary Nitrate Supplementation on Endurance Exercise Performance in Healthy Adults: A Systematic Review and Meta-analysis. Sports Medicine. 2017;47(4):735-756.

Gee LC, Ahluwalia A. Dietary Nitrate Lowers Blood Pressure: Epidemiological, Pre-clinical Experimental and Clinical Trial Evidence. Current Hypertension Reports. 2016;18(2):17.

Lundberg JO, Weitzberg E, Gladwin MT. The Nitrate–Nitrite–Nitric Oxide Pathway in Physiology and Therapeutics. Nature Reviews Drug Discovery. 2008;7(2):156-167.

Vanhatalo A, Bailey SJ, Blackwell JR, et al. Acute and Chronic Effects of Dietary Nitrate Supplementation on Blood Pressure and the Physiological Responses to Moderate-Intensity and Incremental Exercise. American Journal of Physiology. 2010;299:R1121-R1131.

Stanaway FF, Conlon MA, Bird AR. The Fermentation of Dietary Fibre and Its Role in Human Health. Nutrients. 2017;9(7):697.

Marco ML, Sanders ME, Gänzle M, et al. The International Scientific Association for Probiotics and Prebiotics (ISAPP) Consensus Statement on Fermented Foods. Nature Reviews Gastroenterology & Hepatology. 2021;18:196-208.

Singh B, Hathan BS. Chemical Composition, Functional Properties and Processing of Beetroot—A Review. International Journal of Scientific & Technology Research. 2015;4(1):179-184.

Woessner MN, VanBruggen MD, Pieper CF, et al. Beetroot Juice Supplementation Improves Exercise Capacity and Blood Pressure in Older Adults. The Journals of Gerontology: Series A. 2018;73(8):1037-1043.

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