FAQs

Product Questions

Is it a weight loss product?

Flush GBI is not designed as a quick-fix weight loss product. Its purpose is to support detoxification, gut repair, and natural balance. Many people do experience reduced bloating, improved digestion, and sometimes modest weight changes due to water balance and toxin release, but the primary goal is to reset and restore, not to promote fad-style dieting.
How do I use Flush GBI?

Simply follow the usage guide provided with your pack. The process involves preparing, mixing the sachets as instructed (either orally or as an enema), completing the timed flush window, and then moving into the repair and recovery phase. Hydration, light movement, and rest enhance the benefits. Full instructions are clear, step-by-step, and easy to follow.
Is it suitable for a Keto diet?
What does GBI taste like?

GBI has a clean, mineral-rich taste with subtle natural notes. It is intentionally free from artificial flavourings or sweeteners to ensure purity and tolerability. Most people find the taste neutral to mildly earthy, reflecting its functional ingredients. You can either take it pure with distilled or purified water, or add to juice or a smoothy. You decide the flavour.
Is GBI gluten-free?
Does GBI contain any allergens?
What is the shelf life of Flush GBI?
Is Flush GBI vegan?
Is Flush GBI organic?
Is GBI GMO-free?
What is the Flush Sustainable Report?

The Flush Sustainable Report is our commitment to transparency. It details how we source ingredients, reduce packaging waste, and support ethical production practices. We publish it so you can see exactly how sustainability is built into every stage of the Flush GBI journey.
What is sustainable nutrition?
Are GBI ingredients sustainable?

Diet & Medical Questions

Can Flush GBI help me gain or lose weight?

Flush GBI is not a weight management product in the traditional sense. Its aim is to support detoxification, gut health, and natural balance. Some users may notice changes in body weight—often from reduced bloating, water balance, or improved digestion—but any weight gain or loss is secondary to the program’s main goal of helping the body reset and recover.
Are liquid diets bad for you?

Flush GBI is not designed as a replacement for food. It’s a short, structured protocol that combines hydration, mineral balance, and gut repair support. Unlike restrictive “liquid diets,” GBI is intended to work alongside healthy eating patterns and provide a safe reset for the digestive system.
Can Flush GBI be used if I have diabetes?

Flush GBI is low in sugars and formulated without unnecessary carbohydrates, but everyone’s needs are different. If you have diabetes (type 1 or type 2), you should consult your healthcare provider before starting the program to ensure it aligns with your dietary requirements and medication plan.
Can I consume Flush GBI if I’ve had oesophageal or stomach surgery?

If you’ve had recent or significant gastrointestinal surgery, you should only use Flush GBI under the guidance of your doctor or dietitian. While the program is gentle, surgery can alter tolerance and absorption, and professional oversight is strongly recommended.
Can Flush GBI be used if I’m pregnant/breastfeeding?
Can Flush GBI be consumed if I have diverticular disease?
Can children use Flush GBI?
I suffer from Histamine Intolerance. Can I have Flush GBI?
Is Flush GBI suitable for irritable bowel syndrome (IBS)?

Flush GBI may support gut balance and digestion, which can benefit some people with IBS. However, IBS is highly individual—what helps one person may trigger symptoms in another. If you have IBS, we recommend starting slowly, monitoring your response, and checking with your doctor or dietitian before use.

Nutritional Questions

Are the vitamins and minerals in Flush GBI absorbed into the body?

Yes. Flush GBI is formulated with highly bioavailable forms of key minerals and nutrients, designed to be efficiently absorbed and utilised. The cleanse also supports gut function, which can further improve absorption of nutrients from both the program and your regular diet.
Does GBI contain sweetners?

Flush GBI does not rely on artificial sweeteners. Our focus is on purity and function, so the taste profile comes from the natural mineral composition of the ingredients. This ensures the product remains free from unnecessary additives while supporting tolerability.
Is the vegan protein in Flush GBI as good as animal-based protein?

Flush GBI is a plant-based program, and the nutrients included are selected for quality and balance. Plant-derived proteins are just as effective as animal proteins when properly sourced and combined. They provide the essential amino acids needed for muscle repair, recovery, and overall health—without the drawbacks of many animal-based products.
What is the Glycaemic Index (GI) of Flush GBI?
Is Flush GBI low FODMAP?

Flush GBI is designed to be gentle on digestion, and many ingredients fall within low-FODMAP categories. However, tolerance can vary between individuals with IBS or sensitive guts. If you are strictly following a low-FODMAP diet, consult your healthcare professional before use and introduce the program cautiously.

Order & Delivery Questions

When will I receive my order?
UK Mainland: Orders over £20 placed before 8pm arrive in 2 working days.

Offshore UK (including Scottish Highlands):Delivery takes 2 working days for orders placed before 8pm.

International:Expect delivery in 3-5 business days.

For other items, Royal Mail delivers in 2-5 business days.

DPD will attempt delivery once, and if you’re not home, they’ll try your neighbour or a nearby Pickup parcelshop.
Can I cancel or change my order?
How can I track my delivery?

You’ll get a shipping confirmation email with tracking details. You can also check tracking by logging into your Flush account. For DPD orders, use What3words for precise delivery location. If you need assistance, feel free to contact us! For instructions on how to add this to your delivery preferences in the DPD app, view DPD’s guide on how to add a delivery What3Words Address.

For further delivery information, check out our delivery questions page here or get in touch with your order number and we can take a look for you.
Do you delivery to Army Post Office & British Army Post Office?
How much does delivery cost?

Product Questions

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Nutritional Questions

Order & Delivery Questions

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Plant-based nutrition to help the planet thrive

Plant-based nutrition to help the planet thrive