True Biome

Powder
30 suggested servings

+ Supports digestive regularity and the gut lining⁺
+ Combines prebiotics, postbiotics and L-glutamine
+ Low FODMAP, gentle by design, vegan
+ Easily dissolves in any hot or cold drink
+ Made for consistent, everyday gut support

Subscribe and save 20%
  • 20% off your 1st, 2nd and 3rd orders, 10% off thereafter
  • Free ritual scoop with first order
  • Free US shipping on every order
  • Skip, pause or cancel anytime
i
How subscriptions work
+

Benefits

  • Combines prebiotics, postbiotics and L-glutamine
  • Made for consistent, everyday gut support⁺
  • Gentle formula for daily harmony⁺
  • Supports digestive regularity and the gut lining⁺
  • Low FODMAP, gentle by design, vegan

Why Take It

Your gut isn’t just a digestive organ – it’s a dynamic ecosystem, nurtured by nutrients, influenced by daily habits, and challenged by the demands of modern living. True Biome is carefully crafted with PHGG fiber to feed beneficial microbes, L-glutamine – an amino acid and building block of the gut lining – and postbiotics to support your unique microbial balance.⁺

+ A balanced gut supports whole-body health*
+ Gut diversity is key for microbial balance and harmony*
+ The gut lining acts as your body’s internal protective barrier*
+ Prebiotics feed beneficial microbes, helping them thrive**
+ PHGG is a gentle, effective prebiotic fiber for daily gut support**
+ Postbiotics are natural compounds produced by microbes that help maintain balance**

How to Use

Our True Biome powder is neutral in taste, making it easy to add to water or any hot or cold drink of your choice.

For optimal benefits, we recommend using it daily and consistently.

Suggested daily use: We recommend 2 heaped teaspoons (6 g) per day. Mix with 8-10 oz (250 ml) of your chosen drink and stir well. If you have a sensitive digestive system or are new to these ingredients, we suggest starting with half a serving (3 g) for the first few days, then gradually increasing to a full serving (6 g) as your body adjusts.

Serving size: 2 tsp (6 g)
Servings per container: 30 servings per 180 g jar

Ingredients

Ingredients

PHGG (Partially Hydrolyzed Guar Gum)

L-glutamine

Lactobacillus plantarum L-137 HK

Nutrition

Nutrition per 6g
ENERGY 61kJ/15kcal
FAT 0g
of which saturates 0g
Carbohydrates 4.7g
of which sugars 0.2g
Protein 1.3g
Fiber 4.5g
Salt 0g
PHGG 5g
L-Glutamine 0.95g
Lactobacillus plantarum L-137 HK 50mg

Cautionary advice: If pregnant or breastfeeding please consult with your GP or midwife. If you are taking medication or under medical supervision, consult your doctor before taking any food supplement.

  • Whole Body Benefits

  • Finest Ingredients

  • Free Shipping Available

  • Responsibly Sourced

  • 30 Day Confidence Guarantee

Ingredients explained

PHGG PHGG

+ PHGG is a soluble prebiotic fiber. Prebiotics feed beneficial gut bacteria and encourage the production of short-chain fatty acids - compounds that help maintain a healthy gut environment and support gut barrier function.**

+ PHGG is particularly noteworthy for being low-FODMAP and well tolerated, even by those with sensitive digestion. Prebiotic fiber may help support healthy bowel habits and digestive comfort, contributing to a more stable environment for microbial balance.**

+ With over 100 clinical studies supporting its use, PHGG reflects our belief in long-term nourishment - feeding the inner terrain and encouraging balance over time.

L-Glutamine L-Glutamine

+ L-glutamine is an amino acid that helps support the strength and integrity of the gut lining - your body’s internal barrier.**

+ It serves as a key fuel source for intestinal cells and becomes particularly important during times of physical stress, intense exercise, or when the body is run down - moments when the gut may need extra support.**

+ Naturally present in many protein-rich foods, L-glutamine plays a role in various cellular processes and is a well-studied nutrient in the context of gut function and resilience.**

Lactobacillus plantarum L-137 HK Lactobacillus plantarum L-137 HK

+ The heat-treated postbiotic strain Lactobacillus plantarum L-137 is derived from the traditional Japanese fermented food narezushi. Postbiotics are the beneficial end products typically created by probiotics in the gut. Unlike live probiotics, HK L-137 is shelf-stable, does not require refrigeration, and is well tolerated by those with microbiome sensitivity.

+ It has been widely studied in clinical research exploring its role in supporting immune health and microbial balance.**

+ This gentle yet powerful postbiotic complements True Biome’s inclusive approach to long-term gut care.

Trusted by experts

  • “Transparency, emphasis on quality and commitment to research sets Ancient and Brave apart as a wellness company consumers can trust to provide quality products that support the body throughout all seasons of life.”

    Erin Ogden MDA, RDN, LDN
    Dietitian Nutritionist, Ancient + Brave US
  • “I’m so impressed by the integrity of Ancient + Brave, their formulations are pure, science-backed, and rooted in ancient wisdom. They truly embody what it means to nourish both body and soul.”

    Mona Sharma
    Nutritionist
  • “When you honor and restore your internal ecosystem, you naturally begin to care for the world around you with greater awareness and compassion.”

    Madison Miller, M.S.
    Holistic Nutritionist, Ancient + Brave US
  • "What I appreciate about Ancient + Brave is their focus on evidence - not just marketing. The clinical research is solid, the formulations are well thought out, and it’s a standard I feel good standing behind."

    Dr. Ariana Medizade
    PharmD, RPh, FNC
  • "I love that Ancient + Brave pairs integrity with efficacy. Products that work and taste neutral that I can trust for myself and my clients."

    Shauna Falisa
    Celebrity Chef & Nutritionist
  • “We are constantly expanding our research in nutrition and ingredients to ensure we are delivering the highest quality products that are pure, potent, and efficacious.”

    Jo Woodhurst
    VP of Nutrition & Education, Ancient + Brave

FAQs

WHY DOES TRUE BIOME NOT CONTAIN A PROBIOTIC?

Our gut is a complex ecosystem made up of millions of microbes, each playing a unique role in your health.
This microbial community lives protected within your gut lining, which also contains around 70% of your immune cells.
To support gut and digestive health, it’s essential to keep this ecosystem diverse, balanced, and well nourished.

However, modern lifestyle factors - such as stress, diet, medications, and environmental exposures can influence both your gut microbes and gut lining.
Probiotics are live beneficial bacteria that can help increase the number of helpful microbes in the gut.

This is why including probiotic-rich foods in your diet—such as live yogurt, sauerkraut, kefir, and kimchi can naturally introduce beneficial bacteria.
Probiotic supplements can also play a role, particularly after antibiotic use, when microbial diversity may be reduced.
However, the strains and doses need to be well matched to individual needs. Some probiotic products contain very high doses, which can sometimes overwhelm or disrupt the gut’s delicate balance.

Without personalized guidance, choosing the right probiotic supplement can be confusing and may not deliver the best results.
That’s why True Biome takes a different, simpler approach. Instead of adding live bacteria, it focuses on nourishing and supporting the beneficial microbes you already have, as well as strengthening and protecting the gut lining, with a carefully selected combination of:

• PHGG (Partially Hydrolyzed Guar Gum): a gentle prebiotic fiber that feeds and encourages the growth of your existing beneficial bacteria**
• L-Glutamine: an amino acid that helps maintain and support the gut lining**
• HK L-137 (heat-killed Lacticaseibacillus paracasei): a clinically studied postbiotic that supports immune health and strengthens gut barrier function**

True Biome helps nurture your delicate inner ecosystem and supports gut resilience - without the complexity of selecting probiotic strains.⁺

If your healthcare provider has recommended a specific probiotic or you have particular concerns, we encourage you to work closely with them to find the best solution for your individual needs.

CAN I ADD THIS TO HOT DRINKS AS WELL AS COLD?

Yes. All of these ingredients are heat stable, so you can enjoy True Biome in a hot or cold drink. Simply add 6 g to a drink of your choice.

ARE THERE ANY SIDE EFFECTS?

True Biome is designed to be safe, gentle, and well tolerated by most people.*
If you have any concerns or underlying health conditions, we recommend consulting with a healthcare professional before adding any new supplement to your routine.

WHAT IS THE BEST TIME TO TAKE TRUE BIOME?

There isn’t a specific ‘ideal’ time to take True Biome supported by strong evidence. The key is to take it consistently every day to ensure your body receives steady support.*
We recommend choosing a time that fits naturally into your daily routine - whether that’s morning, afternoon, or evening - and pairing it with a regular habit like breakfast.
This helps make taking True Biome an easy and consistent part of your day.⁺
Consistency is what matters most for maximising the benefits of True Biome and supporting your gut health over time.*

CAN I TAKE TRUE BIOME WITH OTHER PRODUCTS OR SUPPLEMENTS?

Yes, absolutely. True Biome can be enjoyed alongside any of our products. It pairs beautifully with True or Wild Collagen to create a complete gut-care ritual.⁺
Collagen supports the integrity and repair of your gut lining and connective tissue.⁺
Our products are designed to work synergistically to nurture your digestive system and support whole-body wellbeing.*

CAN I TAKE TRUE BIOME IF I AM PREGNANT OR BREASTFEEDING?

While the ingredients in True Biome are generally well tolerated, they haven’t been specifically studied for use during pregnancy or breastfeeding.

As a precaution, we recommend speaking with your healthcare professional before introducing any new supplements during this time.

I TAKE MEDICATIONS, CAN I TAKE TRUE BIOME ALONGSIDE?

If you are taking medications, we recommend speaking with your healthcare provider before adding any new supplement to your routine, to ensure it’s appropriate for your individual needs.

True Biome is formulated to be gentle and generally well tolerated.⁺

However, because it contains PHGG (a prebiotic fiber), we advise taking it at least 1–2 hours away from medications where possible, as fiber can sometimes affect absorption. 

Always follow professional guidance for your specific circumstances.

A closer look

  • Tend to your inner terrain

    Like any of nature’s sacred ecosystems, your gut depends on rich diversity and tender care.
    We feed the soil, protect the roots, and honor nature’s ancient wisdom.
    True Biome works to gently support balance in your inner terrain, helping your whole body feel nourished from the ground up.⁺

  • Harmony starts within

    Your gut is not just digestion - it’s a central hub that influences your immune system, brain connection, hormonal rhythm, and even the appearance of your skin.⁺
    True Biome is designed to nourish this inner center, supporting natural harmony that flows outward and helps you feel your best with quiet, powerful care.⁺

  • From stripped soil to fertile ground

    A thriving gut is a fertile landscape, alive with vibrant diversity and deep resilience. Yet modern life - with its stress, processed foods, and environmental stressors - can diminish this richness. True Biome invites daily care, helping to clear what no longer serves, nurture the terrain, and support a balanced gut environment over time⁺

  • Remembering the roots

    Long before modern science caught up, ancient wisdom recognized the gut as a source of strength. Ayurveda called it agni, the fire of life. Traditional Chinese Medicine viewed the gut-spleen system as central to Qi (life energy). Hippocrates spoke of wellbeing beginning in the gut. True Biome honors this timeless perspective, supporting balance at the root where vitality has always begun.⁺

  • Rethinking gut health

    True Biome takes a modern approach to gut health with three potent allies - prebiotics, postbiotics, and amino acids.⁺
    A refined, effective formula that works with what’s already within, supporting your gut microbiome, encouraging resilience, and helping maintain whole-body wellbeing from the inside out.⁺

Shipping

Shipping Costs

USA

For orders over $70, delivery is free.
For orders under $70, delivery is $6.95.

Please allow 5-8 days to receive your order.

UK and Europe 

For orders to the UK please visit ancientandbrave.earth.
For orders to the EU please visit ancientandbrave.eu.

 

30 Day Confidence Guarantee

 

We stand behind our products. If you're not completely satisfied with your purchase, you may return it within 30 days of delivery for a full refund of the purchase price.

For more details, please see our Returns Policy.

Your Ritual on Your Rhythm

Receive your rituals exactly when you need them when you upgrade to a subscription.

With free shipping always, free gifts, and a discount built in, it’s the stress-free way to consistently support your wellbeing.

For more info explore our Subscriptions Terms of Service here

How Subscriptions Work

  1. Select delivery frequency that suits you
  2. Relax and await your delivery
  3. Skip, swap or cancel at any time with no cancellation fees
  4. Your subscription will automatically renew according to your selected frequency unless you cancel before your next billing date
Learn More

True Biome

Kapoor, M. P., Yamaguchi, H., Ishida, H., Mizutani, Y., Timm, D., & Abe, A. (2023). The effects of prebiotic partially hydrolyzed guar gum on skin hydration: A randomized, open-label, parallel, controlled study in healthy humans. Journal of Functional Foods, 103, 105494. https://doi.org/10.1016/j.jff.2023.105494

Salem, I., Ramser, A., Isham, N., & Ghannoum, M. A. (2018). The gut microbiome as a major regulator of the gut–skin axis. Frontiers in Microbiology, 9, 1459. https://doi.org/10.3389/fmicb.2018.01459

Hou, K., Wu, Z. X., Chen, X. Y., et al. (2022). Microbiota in health and diseases. Signal Transduction and Targeted Therapy, 7, 135. https://doi.org/10.1038/s41392-022-00974-4

Heiss, C. N., & Olofsson, L. E. (2018). Gut microbiota-dependent modulation of energy metabolism. Journal of Innate Immunity, 10(3), 163–171. https://doi.org/10.1159/000481519

Abe, A., Morishima, S., Kapoor, M. P., Inoue, R., Tsukahara, T., Naito, Y., & Ozeki, M. (2023). Partially hydrolyzed guar gum is associated with improvement in gut health, sleep, and motivation among healthy subjects. Journal of Clinical Biochemistry and Nutrition, 72(2), 189–197. https://doi.org/10.3164/jcbn.22-75

Appleton, J. (2018). The gut–brain axis: Influence of microbiota on mood and mental health. Integrative Medicine (Encinitas, Calif.), 17(4), 28–32.

Sakai, S., Kamada, Y., Takano, H., Ichikawa, M., Kurimoto, M., Katsuyama, H. K., Nishihira, J., & Sasaki, M. (2022). Continuous partially hydrolyzed guar gum intake reduces cold-like symptoms: A randomized, placebo-controlled, double-blinded trial in healthy adults. European Review for Medical and Pharmacological Sciences, 26(14), 5154–5163. https://doi.org/10.26355/eurrev_202207_29304

Siddiqui, R., Makhlouf, Z., Alharbi, A. M., Alfahemi, H., & Khan, N. A. (2022). The gut microbiome and female health. Biology, 11(11), 1683. https://doi.org/10.3390/biology11111683

Perna, S., Alalwan, T. A., Alaali, Z., Alnashaba, T., Gasparri, C., Infantino, V., Hammad, L., Riva, A., Petrangolini, G., Allegrini, P., & Rondanelli, M. (2019). The role of glutamine in the complex interaction between gut microbiota and health: A narrative review. International Journal of Molecular Sciences, 20(20), 5232. https://doi.org/10.3390/ijms20205232

Shu, X., Yu, T., Kang, K., & Zhao, J. (2016). Effects of glutamine on markers of intestinal inflammatory response and mucosal permeability in abdominal surgery patients: A meta-analysis. Experimental and Therapeutic Medicine, 12, 3499–3506. https://doi.org/10.3892/etm.2016.3799

Coqueiro, A. Y., Rogero, M. M., & Tirapegui, J. (2019). Glutamine as an anti-fatigue amino acid in sports nutrition. Nutrients, 11(4), 863. https://doi.org/10.3390/nu11040863

Abbasi, F., Haghighat Lari, M. M., Khosravi, G. R., Mansouri, E., Payandeh, N., & Milajerdi, A. (2024). A systematic review and meta-analysis of clinical trials on the effects of glutamine supplementation on gut permeability in adults. Amino Acids, 56(1), 60. https://doi.org/10.1007/s00726-024-03420-7

Wang, B., Wu, G., Zhou, Z., Dai, Z., Sun, Y., Ji, Y., Li, W., Wang, W., Liu, C., Han, F., & Wu, Z. (2015). Glutamine and intestinal barrier function. Amino Acids, 47(10), 2143–2154. https://doi.org/10.1007/s00726-014-1773-4

Kapoor, M., Koido, M., Kawaguchi, M., Timm, D., & Ozeki, M. (2020). A randomized, double-blind, placebo-controlled, crossover clinical trial of partially hydrolyzed guar gum dietary fiber for the improved gut microbiome in healthy athletes. Current Developments in Nutrition, 4(Suppl 2), 1568. https://doi.org/10.1093/cdn/nzaa062_025

Edelman, M., Wang, Q., Ahnen, R., & Slavin, J. (2024). The dose response effects of partially hydrolyzed guar gum on gut microbiome of healthy adults. Applied Microbiology, 4(2), 720–730. https://doi.org/10.3390/applmicrobiol4020049

Reider, S. J., Moosmang, S., Tragust, J., Trgovec-Greif, L., Tragust, S., Perschy, L., Przysiecki, N., Sturm, S., Tilg, H., Stuppner, H., Rattei, T., & Moschen, A. R. (2020). Prebiotic effects of partially hydrolyzed guar gum on the composition and function of the human microbiota: Results from the PAGODA trial. Nutrients, 12(5), 1257. https://doi.org/10.3390/nu12051257

Yasukawa, Z., Inoue, R., Ozeki, M., Okubo, T., Takagi, T., Honda, A., & Naito, Y. (2019). Effect of repeated consumption of partially hydrolyzed guar gum on fecal characteristics and gut microbiota: A randomized, double-blind, placebo-controlled, and parallel-group clinical trial. Nutrients, 11(9), 2170. https://doi.org/10.3390/nu11092170

Oral intake of heat-killed Lactobacillus plantarum L-137 decreases the incidence of upper respiratory tract infection in healthy subjects with high levels of psychological stress. (2014). Journal of Nutritional Science, 3, e44. https://doi.org/10.1017/jns.2014.13

Yoshitake, R., Nakai, H., Ebina, M., Kawasaki, K., Murosaki, S., & Hirose, Y. (2022). Beneficial effect of heat-killed Lactiplantibacillus plantarum L-137 on skin functions in healthy participants: A randomized, placebo-controlled, double-blind study. Frontiers in Medicine, 9, 912280. https://doi.org/10.3389/fmed.2022.912280

Nakai, H., Murosaki, S., Yamamoto, Y., Furutani, M., Matsuoka, R., & Hirose, Y. (2021). Safety and efficacy of using heat-killed Lactobacillus plantarum L-137: High-dose and long-term use effects on immune-related safety and intestinal bacterial flora. Journal of Immunotoxicology, 18(1), 127–135. https://doi.org/10.1080/1547691X.2021.1979698

Tanaka, Y., Hirose, Y., Yamamoto, Y., Yoshikai, Y., & Murosaki, S. (2020). Daily intake of heat-killed Lactobacillus plantarum L-137 improves inflammation and lipid metabolism in overweight healthy adults: A randomized-controlled trial. European Journal of Nutrition, 59(6), 2641–2649. https://doi.org/10.1007/s00394-019-02112-3

Afzaal, M., Saeed, F., Shah, Y. A., Hussain, M., Rabail, R., Socol, C. T., Hassoun, A., Pateiro, M., Lorenzo, J. M., Rusu, A. V., & Aadil, R. M. (2022). Human gut microbiota in health and disease: Unveiling the relationship. Frontiers in Microbiology, 13, 999001. https://doi.org/10.3389/fmicb.2022.999001

de Vos, W. M., Tilg, H., Van Hul, M., et al. (2022). Gut microbiome and health: Mechanistic insights. Gut, 71, 1020–1032.

Zhang, Y. J., Li, S., Gan, R. Y., Zhou, T., Xu, D. P., & Li, H. B. (2015). Impacts of gut bacteria on human health and diseases. International Journal of Molecular Sciences, 16(4), 7493–7519. https://doi.org/10.3390/ijms16047493

Shreiner, A. B., Kao, J. Y., & Young, V. B. (2015). The gut microbiome in health and in disease. Current Opinion in Gastroenterology, 31(1), 69–75. https://doi.org/10.1097/MOG.0000000000000139

Rondinella, D., Raoul, P. C., Valeriani, E., Venturini, I., Cintoni, M., Severino, A., Galli, F. S., Mora, V., Mele, M. C., Cammarota, G., Gasbarrini, A., Rinninella, E., & Ianiro, G. (2025). The detrimental impact of ultra-processed foods on the human gut microbiome and gut barrier. Nutrients, 17(5), 859. https://doi.org/10.3390/nu17050859

Zhou, J., & Ho, V. (2023). Role of baseline gut microbiota on response to fiber intervention in individuals with irritable bowel syndrome. Nutrients, 15(22), 4786. https://doi.org/10.3390/nu15224786

Watanabe, M., Nakai, H., Ohara, T., et al. (2024). Beneficial effect of heat-killed Lactiplantibacillus plantarum L-137 on intestinal barrier function of rat small intestinal epithelial cells. Scientific Reports, 14, 12319. https://doi.org/10.1038/s41598-024-62657-0

Yoshitake, R., Hirose, Y., Murosaki, S., & Matsuzaki, G. (2021). Heat-killed Lactobacillus plantarum L-137 attenuates obesity and associated metabolic abnormalities in C57BL/6J mice on a high-fat diet. Bioscience of Microbiota, Food and Health, 40(2), 84–91. https://doi.org/10.12938/bmfh.2020-040

Wong, W.‑Y., Chan, B. D., Cho, P.‑T., Leung, T.‑W., & Tai, W. C.‑S. (2024). Beneficial and immunomodulatory effects of heat-killed Lactobacillus plantarum L-137 in normal and acute colitis mice. Journal of Functional Foods, 116, 106167. https://doi.org/10.1016/j.jff.2024.106167

Zhou, Q., Verne, M. L., Fields, J. Z., Lefante, J. J., Basra, S., Salameh, H., & Verne, G. N. (2019). Randomised placebo-controlled trial of dietary glutamine supplements for postinfectious irritable bowel syndrome. Gut, 68(6), 996–1002. https://doi.org/10.1136/gutjnl-2017-315136

Abe, A., Kapoor, M. P., Morishima, S., Ozeki, M., Sato, N., Takara, T., & Naito, Y. (2024). Effectiveness of partially hydrolyzed guar gum on cognitive function and sleep efficiency in healthy elderly subjects in a randomized, double-blind, placebo-controlled, and parallel-group study. Nutrients, 16(8), 1211. https://doi.org/10.3390/nu16081211

Deters, B. J., & Saleem, M. (2021). The role of glutamine in supporting gut health and neuropsychiatric factors. Food Science and Human Wellness, 10(2), 149–154. https://doi.org/10.1016/j.fshw.2021.02.003

Braga, J. D., Thongngam, M., & Kumrungsee, T. (2024). Gamma-aminobutyric acid as a potential postbiotic mediator in the gut–brain axis. npj Science of Food, 8, 16. https://doi.org/10.1038/s41538-024-00253-2

Mohajeri, M. H., La Fata, G., Steinert, R. E., & Weber, P. (2018). Relationship between the gut microbiome and brain function. Nutrition Reviews, 76(7), 481–496. https://doi.org/10.1093/nutrit/nuy009

The gut-body connection: how your gut health shapes your skin, hormones, mood and more

It's time to celebrate the gut for all it does. Your gut works tirelessly, and on far more than just breaking down your lunch. It quietly shapes almost every part of your body - from your energy and mood to your skin, immunity, and hormones. Find out more.
Read more
The gut-body connection: how your gut health shapes your skin, hormones, mood and more
6 Min read

You may also enjoy

    Shopping Basket

    Your shopping basket is empty

    Continue shopping