The Metabolic Reset

a 21-day nutrition plan to improve metabolism, energy + more

Serving: eBook: Digital Download

A 21-day nutrition reset designed to improve energy, support metabolic health, and rebuild your relationship with food. Created by nutritionist Rhian Stephenson, the programme follows a 4-5-4 method: four days of time-restricted eating, five days of a modified ketogenic sprint, and four days of time-restricted eating to reintegrate. Each phase is designed to build metabolic flexibility; your body's ability to switch between burning carbs and fat efficiently. Built around 90+ recipes, daily meal plans and expert guidance throughout. No calorie counting, and no meal replacements or bars — just real food, real science, and real change in 21 days. This is a reset you'll actually finish — and want to repeat.

For best results, choose the digital programme bundle: Metabolic Fix for blood sugar support, Enhanced Synbiotic for gut support, and Cellular Hydration for energy and focus.

Benefits

21 days, three phases

90+ recipes + daily meal plans

Lifetime access, follow at your own pace

Suitable for Vegans + Meat-Eaters

Reset your relationship with food

Improve energy + mental clarity

programme

Digital Programme

Digital Programme - Bundle

-

1

+

- £30.00

Free shipping on all UK orders over £50

90 day money back guarantee

Good health comes over time, not overnight. For the best results, most supplements require at least 3 months of consistent, dedicated use. To help you maximise results, we've introduced a 90-Day Feel-Good Guarantee. If you're not seeing an improvement after that period, you'll get your money back. Terms and Conditions apply.

Third party tested

Practitioner designed and trusted

The Essential Breakdown

Description

The Metabolic Reset is a 21-day nutrition programme designed to support energy, metabolic health, and a healthier relationship with food through a structured, science-led approach. Created by nutritionist Rhian Stephenson, the programme helps you move beyond restrictive dieting by teaching your body to use fuel more efficiently while building sustainable habits that last long after the reset is complete.

Built around a unique 4-5-4 framework, the programme combines periods of time-restricted eating with a modified ketogenic phase. The first four days focus on establishing structured eating windows, followed by five days designed to encourage greater reliance on fat as a fuel source, before a final four-day reintegration phase that helps transition back to a more flexible eating pattern.

At the heart of the programme is the concept of metabolic flexibility - the body's ability to efficiently switch between using carbohydrates and stored fat for energy depending on availability and demand. Modern eating habits, constant snacking, and frequent blood sugar fluctuations can make this process less efficient over time. By strategically varying fuel sources and meal timing, the programme helps support the body's natural ability to access both carbohydrates and fat for energy, promoting more stable energy levels and reducing reliance on frequent eating throughout the day.

The programme also supports greater awareness of hunger and fullness signals. Appetite is regulated by a complex network of hormones, including ghrelin, which signals hunger, and leptin, which signals satiety. Irregular eating patterns and blood sugar instability can disrupt these natural cues, making it harder to distinguish true physiological hunger from cravings or habitual eating. Through structured meal timing and balanced nutrition, the programme helps reconnect you with these natural appetite signals and encourages a more intuitive relationship with food.

Featuring over 90 nourishing recipes, detailed meal plans, and expert guidance throughout, the reset removes guesswork while providing practical tools to support long-term success. There is no calorie counting, no meal replacement shakes, and no highly restrictive rules - just real food, evidence-based nutrition, and a clear framework designed to help you feel your best.

For enhanced support, the digital programme bundle includes targeted supplements: Metabolic Fix to support healthy blood sugar balance and appetite regulation, Enhanced Synbiotic to support gut microbiome health, and Cellular Hydration to support hydration, focus, and sustained energy throughout the programme.

Key Benefits

1. Supports metabolic flexibility
Structured around a 4-5-4 approach to help support the body’s ability to switch between carbohydrates and fats as primary fuel sources depending on availability and demand.

2. Supports more stable energy levels
Helps reduce reliance on constant energy intake by encouraging more efficient use of dietary and stored energy sources.

3. Supports fat and carbohydrate utilisation
Encourages metabolic efficiency by supporting the body’s natural ability to access different fuel pathways during fasting and feeding periods.

4. Supports appetite regulation signals
Designed to support the natural balance of hunger and satiety hormones including ghrelin and leptin, which help regulate when to eat and when to stop.

5. Helps improve awareness of hunger and satiety cues
Structured eating windows support a clearer distinction between true physiological hunger and habitual or emotional eating patterns.

6. Supports metabolic consistency and reduced snacking patterns
Regular structure helps reduce frequent blood sugar fluctuations and supports more consistent energy intake behaviours.

7. Supports habit formation and dietary awareness
Phased approach with whole-food meals helps simplify nutrition choices and build more consistent long-term eating habits.

8. Enhanced with targeted daily support formulas
Can be combined with Metabolic Fix, Enhanced Synbiotic, and Cellular Hydration to support blood sugar balance, gut health, hydration, and focus.

How To Use

This is a digital product - a download link will be available upon purchase.

This product is not intended to diagnose, treat, cure or prevent disease. Food supplements should not replace a balanced diet. Formulated for Adults 18+.

Precautions: If taking medications, pregnant, breastfeeding or health condition present, consult your healthcare practitioner before using this product.

Shipping

Standard delivery

Your order will take 1-2 business days for our warehouse to process, and it will ship and arrive within 2 business days after that.

1-2 Days

Express delivery

Your order will take 1 business day for our warehouse to process before, and it will ship and arrive within 1 business day after that.

1 Day

International delivery

Your order will take 2 business days for our warehouse to process, and it will ship and arrive within 7-14 business days after that. Your order may be subject to customs tax/duty. We currently ship to Canada, Hong Kong, Singapore, UAE, Switzerland, Ireland, Netherlands, France, New Zealand, and Australia.

7-14 Days

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"Hands-down my favourite supplements"

"ARTAH have firmly cemented themselves as one of the most trustworthy health brands on the market."

"A brand that's always at the cutting edge of optimum nutrition."

"All the cool girls are using ARTAH these days."

Winner of "Best Herbal Supplement Brand"

"Hands-down my favourite supplements"

"ARTAH have firmly cemented themselves as one of the most trustworthy health brands on the market."

"A brand that's always at the cutting edge of optimum nutrition."

"All the cool girls are using ARTAH these days."

Winner of "Best Herbal Supplement Brand"

"Hands-down my favourite supplements"

"ARTAH have firmly cemented themselves as one of the most trustworthy health brands on the market."

"A brand that's always at the cutting edge of optimum nutrition."

"All the cool girls are using ARTAH these days."

Winner of "Best Herbal Supplement Brand"

"Hands-down my favourite supplements"

"ARTAH have firmly cemented themselves as one of the most trustworthy health brands on the market."

"A brand that's always at the cutting edge of optimum nutrition."

"All the cool girls are using ARTAH these days."

Winner of "Best Herbal Supplement Brand"

"Hands-down my favourite supplements"

"ARTAH have firmly cemented themselves as one of the most trustworthy health brands on the market."

"A brand that's always at the cutting edge of optimum nutrition."

"All the cool girls are using ARTAH these days."

Trusted by experts

"I use Cellular Hydration during my workouts and it has been fantastic. It's undoubtably helped my training and performance and has an incredibly refreshing taste."

Dr. Hugh Coyne

Private GP

"I use Enhanced NAD+ Complex because it targets multiple aspects of NAD+ biology, supporting production via nicotinamide riboside while also helping reduce NAD+ depletion. This synergistic formulation supports both energy metabolism and longevity pathways in a way that feels both intelligent and aligned with systems biology."

Dr Tamsin Lewis

Founder of Wellgevity Clinic

"We've been consistently impressed by the quality of ARTAH supplements - you can really feel the difference. The formulations are clean, potent, and clearly backed by science, which gives us confidence in what we are recommending to our clients and using ourselves."

Roberta Baldo

Nutritional Therapist + Founder of Baldo + Mason

"ARTAH sets a new standard for supplements - delivering science-backed formulations, effective dosages, and the best quality ingredients."

Dr Aanya Hirdaramani

Founder of The Nourish Method

"As a nutritionist and someone currently pregnant, I’ve felt great taking ARTAH’s Enhanced Fertility. It’s one of the few formulas I fully trust for both clinical recommendations and my own journey. It is thoughtfully dosed, easy to tolerate, and includes key nutrients that so many standard pre-natals miss! "

Clarissa Lenherr

Nutritional Therapist

"Finding the right electrolytes has been a game changer for me, and these are the best!"

Ollie Black

Hyrox Athlete + PT

"I really like how Metabolic Fix is compounded, great from a cravings and blood sugar regulation POV."

Pete Williams

Functional Medicine Practitioner

"As a health and wellness professional, I'm always looking for ways to optimise my clients' well-being. I wholeheartedly recommend Cellular Hydration to anyone looking to combat fatigue and enhance overall vitality."

Jen Mackinder

Nutritional Therapist

"The purity of Essential Creatine is unmatched; it's the best quality out there, and it's been a game changer in my routine"

Caroline Idiens

PT + Founder, Caroline's Circuits

"I have been using Artah supplements for over 4 years. Metabolic Fix is such a powerhouse for supporting your blood sugar levels and helps balance my energy throughout the day. Berberine, which is the key ingredient, is one of my favourite plant compounds to protect your gut barrier. Absolutely love the passion and the care that goes into everything that Rhian and the team do."

Ksenija Selvanova

Author + Lymphatic Massage Specialist

"Quality, dosage, and effectiveness are the most important things to me when I recommend supplements to my clients - and ARTAH delivers on all fronts. I love this brand."

Lucy Miller

Nutritional Therapist & Contributing Wellness Editor for Sheerluxe

FAQs

What results should I expect?

This programme is designed to combat cravings, support your metabolism, and reduce body fat. Common results include better energy, appetite control, emotional wellbeing, and fat loss.

Can I still eat out?

Yes! There are guidelines in the e-book that help you understand how to navigate this.

Can I personalise the meal plan?

Yes, there are over 90 recipes to choose from. If you prefer to swap in other Artah recipes you are free to do so.

Will I experience any side effects?

This programme is designed to optimise your nutrition and metabolism to help you feel better. As you start to change how and what you eat, your body will start to adapt and some individuals will feel this more than others. It depends on your starting point, how much sugar you currently consume, and if you follow a plant rich diet. Common side effects at the start of your plan can include cravings, fatigue, and headaches from sugar withdrawal, however these should be short lived. If you are concerned about potential side effects, we recommend purchasing the Ultimate Metabolic Reset, which includes supplements to support energy, combat fatigue, and help with healthy metabolism.

What is time restricted eating?

Time restricted eating means eating within a specific timeframe, for example, condensing your meals into an 8 hour period, and 'fasting' for 16 hours. It is a proven tool to help improve energy, metabolic health, gut health and more.

CUSTOMER REVIEWS

The answers provided reflect the views and opinions of individual customers and ARTAH does not endorse any related claims. Food supplements are not intended to treat, cure, or prevent any disease or health condition