Office 14835 Atlas Nutrition Ltd (Trading As Tumble), 182-184 High Street North, London, England, E6 2JA
Personalised Nutrition Coaching
from Tumble's nutritionist, Becca.
BSc, MSc, RNutr
Registered functional nutritionist
10+ years of experience
Expert personalised nutrition coaching and stool testing to transform your wellbing.
Symptoms don't always stay in your gut
Shortcut the guesswork
Why advanced stool testing matters
Advanced stool testing is an incredibly powerful diagnostic tool, revealing clear insights into digestion, inflammation, and microbiome balance.
This clarity allows us to personalize your coaching for truly transformative results.
Most nutritionists do not (or cannot) offer this level of testing.
Practitioner-led, registered support.
Inside the GI360™ report
This is one of the most advanced tests money can buy.
A few highlights:
Results overview
A high-level view of areas impacting your health.
Incredibly detailed results, displayed and explained clearly.
Dysbiosis patterns
Understanding inflammation and dysbiosis to target root causes.
Biomarker snapshot
Countless biomarkers relating to inflammation, digestion, skin and more.
Microbiome summary
Show how your beneficial and potentially harmful bacteria compare.
Compare our packages
From transformation, to one-off insight meetings, you choose how much help you'd like.
8
8
GI360™
Stool test
1:1 Sessions
Duration
Personalised
plan
Unlimited
messaging
Long-term
strategy
Best for
Popular
Transform⁺
RRP £499
x8
4 Months
Results
8
6
Foundation⁺
-
x6
2 Months
-
Growth
6
Clarity
-
x1
60 Mins
Partial
-
-
Insight
Prices:
Clarity call: £59
Foundations package: £599
Transform⁺ package: £1,199
(Includes GI360™ Advanced stool testing RRP £499)
Contact us to get started
Nourishing your
microbiome
Every time you eat, you’re not just feeding yourself - you’re shaping the environment your gut bacteria live in. So what actually helps them thrive?
READ OUR RECEPIESSHOP
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Food supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle. Do not exceed the recommended daily intake. Keep out of reach of children. If pregnant, breastfeeding, taking medication, or under medical supervision, consult a healthcare professional before use. Store in a cool, dry place away from direct sunlight.
© 2026 Tumble.
Potential Adjustment Effects:
Most of what you will notice are positive changes to your metabolism, immune system, energy, skin and overall wellbeing.
So don't panic if your body goes through an adjustment period as it adapts to our formulation.
Bright yellow wee: Totally harmless and normal for many, happens for the same reason as Berocca. This is due to our high vitamin B2 (riboflavin) content. Like all B vitamins, any excess is naturally excreted once your body has absorbed what it needs.
Digestive changes/bloating: No cause for concern. Our formula is potent and comprehensive — your body may take time to adjust to our live cultures, fibres, enzymes and micronutrients. Reducing your dose temporarily may help.
Mild digestive sensitivity: Some individuals may experience mild discomfort when first starting. This typically resolves quickly. Simply halve your dose until you have adjusted.Changes in digestive patterns: Temporary changes in frequency or consistency can occur as your system adapts.
Allergen information:
Contains: Gluten (Wheat).
Scientifically recognised nutrient contributions:
Gut
1. Riboflavin contributes to the maintenance of normal mucous membranes (e.g. intestinal mucosa). Biotin contributes to the maintenance of normal mucous membranes (e.g. intestinal mucosa).
Energy
2. Riboflavin, thiamine, vitamin B6, vitamin B12 and biotin contribute to normal energy-yielding metabolism. Riboflavin, vitamin B6 and vitamin B12 contribute to the reduction of tiredness and fatigue.
Immunity
3. Vitamin D, vitamin B6, vitamin B12 and selenium contribute to the normal function of the immune system.
Brain
4. Thiamine, riboflavin, vitamin B6, vitamin B12 and biotin contribute to normal psychological function and the normal functioning of the nervous system.
Metabolism
5. Biotin contributes to normal macronutrient metabolism. Vitamin B6 contributes to normal protein and glycogen metabolism. Riboflavin contributes to the normal metabolism of iron. Vitamin B6 contributes to normal cysteine synthesis.
Skin, Hair & Nails
6. Biotin contributes to the maintenance of normal skin and hair. Riboflavin contributes to the maintenance of normal skin. Selenium contributes to the maintenance of normal hair and nails.
Hormonal Activity
7. Vitamin B6 contributes to the regulation of hormonal activity.
Cell Devision & Blood Formation
8. Vitamin B12 contributes to normal red blood cell formation and has a role in the process of cell division. Vitamin B6 contributes to normal red blood cell formation. Vitamin D has a role in the process of cell division.
Heart & Homocysteine Metabolismal
9. Thiamine contributes to the normal function of the heart. Vitamin B6 and vitamin B12 contribute to normal homocysteine metabolism.
Bones, Teeth & Muscle Function
10. Vitamin D contributes to the maintenance of normal bones, teeth and muscle function, to normal blood calcium levels and to normal absorption/utilisation of calcium and phosphorus.
Thyroid & Reproductive Health
11. Selenium contributes to normal thyroid function and normal spermatogenesis.
Protection of Cells
12. Riboflavin, vitamin E and selenium contribute to the protection of cells from oxidative stress.