Precision Nutrition · UK / East Midlands & South Yorkshire

Precision Performance
& Corporate Wellness

Nutrition, flavour, hospitality and brand — calibrated for executives and ambitious businesses across the East Midlands & South Yorkshire.

Accreditation
RSPH Level 4
Flavour industry
20+ years
Engagements
Fixed scope
The JJB Calibrated mark

In their words

Ten voices. Every discipline, one business owner at a time.

Hospitality

Four weeks. That’s all it took to turn this business around. We went on to achieve a five-star accreditation, something I genuinely didn’t think was within reach when we started.

Ben Business Owner

Flavour development

James’s technical expertise, attention to detail with complex documentation, and seamless coordination between our team and the master manufacturer have made every project a success.

Filip Business Owner

Nutrition & wellbeing

His approach, knowledge, and guidance throughout my consultation were exemplary. The personalised nutrition plan and targeted support made a real difference to how I felt day to day.

Craig N

Cannabinoid

He helped refine our vision from the ground up — reimagining our branding and logo, and formulating our products using purely natural, high-quality ingredients with zero synthetics. I couldn’t be happier with the results.

Claire Business Owner

Compliance

He completely aligns with our mindset on strict regulatory compliance, and he’s been instrumental in connecting us with key manufacturers and managing those relationships smoothly.

Angela Business Owner

Research & development

He quickly became the reliable leader we needed in R&D, allowing our business to continue its day to day operations without the disruption of managing development in house.

S.A Business Owner

Brand & marketing

He completely elevated my brand identity, transformed my LinkedIn profile, and brought clarity and consistency to my social media presence.

Rachael Business Owner

Nicotine pouch R&D

The support from James was key for the success of the division, reducing development lead-time and improving the output with a portfolio of flavours loved by our customers.

Riccardo Alchem NicSelect

Flavour development

He combines deep technical knowledge with a methodical, well structured development process, and he simply won’t settle until a profile is exactly right.

S. Nazir

Flavour development

He has a sharp read on trends before they hit the mainstream, and a genuinely extensive network of contacts across the industry.

O. Lewis Business Owner

Every engagement behind these was scoped and capped in writing before any work began.

Let’s start a project

Hospitality

01 / 05

Why JJB Calibrated

We do not sell generic diet plans,
or bill by the hour

Data-driven frameworks and strict accountability, for clients who cannot afford to leave things to chance.

Founder James Jordan Barrett, MRSPH, combines an RSPH Level 4 accreditation in Nutritional Science, Performance Nutrition & Dietary Analysis with over 20 years in the flavour industry and hands-on experience managing multi-site kitchens and running his own multiple outlet catering businesses. By combining data-driven frameworks with strict accountability, we deliver predictable outcomes for clients who cannot afford to leave things to chance.

James Jordan Barrett, MRSPH, brings a proven track record of formulating products for global brands on international contractual works — including transforming a leading global flavour house from vendor to primary flavour innovation partner for major international e-liquid and vape brands, and acting as flavour architecture consultant to a global nicotine pouch innovator on next-generation product development.

Accreditation RSPH Level 4
Discipline Nutritional Science
Flavour industry 20+ years
Track record Global brands
James Jordan Barrett, MRSPH, founder of JJB Calibrated Ltd

James Jordan Barrett, MRSPH

Founder // JJB Calibrated Ltd

RSPH Level 4 accredited in Nutritional Science, Performance Nutrition & Dietary Analysis, with over 20 years in the flavour industry, multi-site kitchen management, and his own multiple outlet catering businesses.

How we work

Scoped and capped,
up front

Every engagement is scoped individually. Get in touch for a bespoke quote.

01

Fixed-Scope Guarantee

All engagements are scoped and capped up front. We work on fixed fees, with no ambiguous hourly escalations or unbudgeted surprises.

02

Payment terms

Smaller, fixed-scope jobs are settled upfront before work begins. Larger core projects require a mobilisation payment on signing, with the balance due on sign-off. Ongoing retainers are invoiced monthly in advance.

03

Out-of-scope advisory

Urgent strategy sessions or ad-hoc advisory outside agreed milestones are available at our standard day rate, on request.

Get started

Ready to calibrate?

To initiate a framework alignment, discuss a brand and digital project, or arrange a corporate group briefing, get in touch below.