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LYVA

Gut Health & Botanical Nutrition.

Have a LYVA a day.
Life from the inside.

Gut health and Vitamin D nutrition for people who use their bodies — and want to keep using them.

Pre-launch — founding members only

Three products. Launching soon. Join for founder pricing.

Notify Me at Launch

Your gut. Your foundation.

The gut is where
health begins.

Your gut microbiome is the foundation of how your body functions. An imbalanced gut affects your energy, your immunity, your recovery and your overall wellbeing. People in northern climates face two compounding challenges: low sunlight means chronic Vitamin D deficiency, and modern diets lack the prebiotic fibre and polyphenols of the Mediterranean diet.

LYVA delivers both. Botanical nutrition and Vitamin D for people who use their bodies and want to keep using them.

Discover Flex →

The UK

1 in 5

UK adults are Vitamin D deficient. Northern climates, low sunlight, modern diets.

The Research

“The gut microbiome plays a central role in systemic inflammation and overall health.”

Emerging research consensus

The INSPIRE Trial

Daily prebiotic fibre

University of Nottingham research showed daily prebiotic fibre significantly improved physical function and wellbeing in participants.

Our philosophy

The gut is upstream
of everything.

An imbalanced gut microbiome drives systemic inflammation that reaches every organ — including your joints. LYVA is built around one evidence-backed truth: support the gut, modulate inflammation pathways, support tissue health. Every product. Every ingredient. Every dose.

Morning ritual

“Mechanism first.
Marketing second.
Always.”

The Range

Three products. One protocol.

Start anywhere. The stack compounds over time.

Protocol
Flex
Gut-Joint Powder Sachet
Eleven precision botanicals supporting gut health, microbiome diversity, and Vitamin D nutrition for people in northern climates. The Mediterranean diet's key botanical mechanisms — prebiotic fibre, curcumin, rosehip — in one daily sachet. Built for people who use their bodies.
£39pound;39
11 botanicals Vitamin D3 + K2 Gut + joint
Discover Flex →
Foundation
Origin
30-Plant Longevity Blend
The daily foundation. Thirty botanicals supporting gut health, energy, hormonal resilience, and long-term vitality. Stack with Flex for the full LYVA protocol.
£39pound;39
30 botanicals Hormonal resilience Longevity
Discover Origin →
Gateway
Chew
Joint Collagen Gummies
2,500mg hydrolysed collagen peptides. LitoZin® rosehip. BCM-95 curcumin. Vitamin C. Blackcurrant & elderberry gummy bear. Pectin-based. The daily ritual you'll actually stick to.
£24.99pound;24.99
2,500mg Collagen LitoZin® 30 bears
Discover Chew →

The Science

The gut-joint axis.
What the research now shows.

The gut microbiome is closely linked to systemic inflammation. This is the science your consultant probably hasn’t mentioned.

The gut-joint axis

How an imbalanced gut microbiome drives joint inflammation

The gut-joint axis — three stagesHow gut dysbiosis leads to bloodstream inflammation and joint cartilage breakdown01 — dysbiosis02 — bloodstream03 — joint tissueGut microbiomeDysbiosis + leaky barrierbacterialeaked proteinsBloodstreamSystemic inflammationinflammatory signalsJoint tissueCartilage breakdownbonebonesynovial inflammation

LYVA Flex supports gut barrier integrity and Vitamin D nutrition — addressing the mechanism upstream.

01
Dysbiosis & leaky gut
When gut bacteria fall out of balance, the intestinal barrier weakens. Bacterial proteins enter the bloodstream — triggering systemic inflammation that targets connective tissue and joints.
02
Bacterial DNA in cartilage
Researchers have found gut bacterial DNA inside the joint lining and cartilage of arthritis patients. The gut and the joint are not separate systems. They never were.
03
The INSPIRE Trial
University of Nottingham research found daily prebiotic fibre significantly reduced pain and improved physical function in osteoarthritis patients. UCL and Leeds researchers confirm gut-barrier changes precede joint damage by years.
“An imbalance of gut bacteria doesn’t just affect digestion. It may contribute to an inflammatory environment that affects joints — often long before changes appear on a scan.”
Read the research →

Vieira et al. (2021). Diet, microbiota and autoimmune diseases. Lupus, 30(4), 479-489.

Huang et al. (2016). Bacterial DNA in synovial samples from patients with juvenile idiopathic arthritis. Arthritis & Rheumatology, 68(7), 1753-1763.

Schott et al. (2018). Targeting the gut microbiome to treat the osteoarthritis of obesity. JCI Insight, 3(8), e95997.

INSPIRE Trial — University of Nottingham. Prebiotic supplementation and physical function in knee osteoarthritis.

Clinical-grade ingredients

Every ingredient earns its place.

We source the forms used in clinical trials — not the cheap generic equivalent. The difference is not marketing. It is whether the product actually works.

65% AKBA extract
Boswellia Serrata
The joint-focused extract. AKBA is the specific compound that targets 5-LOX — an enzyme involved in cartilage breakdown. The clinical-grade form used in research.
7× absorption vs standard
Curcumin BCM-95
High-bioavailability curcumin in the form used in clinical studies. Standard raw turmeric has low bioavailability. BCM-95 is formulated for enhanced absorption.
Galactolipid standardised
Rosehip LitoZin®
Contains the GOPO galactolipid fraction studied in multiple RCTs in people with joint concerns. Absent from generic rosehip powder. Non-negotiable.
2,500mg hydrolysed
Collagen Peptides
A clinically studied dose. Investigated for its impact on chondrocyte activity — the cells that produce cartilage. Many products use much lower doses; here, the dose is aligned with research.
Inner bark powder
Slippery Elm
Mucilage-rich mucosal support. Forms a soothing layer on the intestinal lining in traditional use, included to support gut barrier integrity.
Inulin + FOS — INSPIRE trial blend
Prebiotic Blend
Contains the same inulin + FOS prebiotic combination used in the University of Nottingham’s INSPIRE trial. A fermentable fibre that feeds gut bacteria which produce short-chain fatty acids.
D3 2000IU + K2 MK-7
Vitamin D3 & K2
Vitamin D contributes to the maintenance of normal bones. Around 1 in 5 UK adults are thought to be deficient. Northern climates and low sunlight make D3 especially relevant — provided at 2,000IU with MK-7 K2 to support bone health.

The Mediterranean Connection

Spain reports significantly better health outcomes than the UK — likely influenced by higher Vitamin D from sunlight and the widely studied benefits of the Mediterranean diet: olive oil polyphenols, omega-3 rich oily fish, and prebiotic-rich vegetables. LYVA Flex delivers the key botanical mechanisms of that diet in a daily sachet. The Mediterranean diet. Without moving to Seville.

Active lifestyle

Founder’s note

Why this exists.

In 2026 I had to stop working with my hands. Declining mobility. Physical work that was becoming impossible. I read the research on gut health and systemic inflammation — the gut-joint axis, Vitamin D deficiency in northern climates, the INSPIRE trial. The mechanism was real. The products built around it were not.

I looked at what was commercially available. Underdosed turmeric capsules. Generic glucosamine from the 1990s. Nothing that took the science seriously. So I built what I wanted to find.

The research is clear that women are significantly more affected by arthritis than men. Yet the options available to women are the same inadequate products everyone else gets. LYVA Flex is designed to change that — not with wellness claims, but with clinical science, clinical-grade ingredients, and honest dosing.

If you’ve been told to just manage it — there is more to consider. This is where I would start.

William Tyler-Street, Founder
🇩🇪

Für unsere deutschen Kunden

Naturheilkunde trifft moderne Evidenz.

LYVA Flex und Origin sind entwickelt für Menschen in Nordeuropa, die mit chronischen Gelenkbeschwerden leben — Pflanzen, die gut genug verstanden werden, um zu wissen, warum sie wirken.

For people like you

Morning ritual Gardening Strength training Boxing Yoga Outdoors

For everyone who uses their body — and wants to keep using it.

Early access

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Join the LYVA waitlist for early access, founding member pricing, and updates on the gut-joint research behind the range. No spam. Ever.

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