Feel Pro Metabolic Review UK: Does It Really Work?

A berry-flavoured sachet you stir into water twenty minutes before dinner, and your body starts making more of the same hormone that Mounjaro and Wegovy imitate. That's the promise behind Feel Pro Metabolic, and it's a clever one, because it sits exactly where a lot of people are: interested in what GLP-1 medication can do, but not sure they want an injection, a prescription, or the price tag.

So does it work? We went through the ingredient list, the doses, and the research Feel itself points to. Here's an honest read from a UK pharmacy team who prescribe the medicines this drink is being compared to.

What is Feel Pro Metabolic?

Feel is a British supplement brand, and Pro Metabolic is its entry into what the industry now calls the "natural GLP-1" category. It comes as 30 single-serve sachets, one a day, mixed into 300 to 400ml of water and taken 20 to 30 minutes before your largest meal.

The pitch is appetite. Fewer cravings, steadier energy, better blood sugar after meals, all by nudging your gut into releasing more of your own GLP-1 rather than injecting a synthetic version of it.

Feel is careful with its wording, and that matters. The product page talks about supporting metabolism and appetite regulation. It doesn't claim to treat obesity, because a food supplement legally can't. That line is drawn by the MHRA, which treats a product as a medicine if it claims to treat or prevent disease, or if it changes how the body works by pharmacological means. Everything on the other side of that line, including this drink, is regulated as food rather than medicine.

Worth sitting with for a second: nobody had to prove Feel Pro Metabolic works before it went on sale. That isn't an accusation. It's just how supplement regulation functions in Britain, and it changes how you should read any claim attached to one.

What's actually in a sachet?

Feel publishes the full ingredient list and, unusually for this category, tells you the size of the blend. Credit where it's due.

Two things stand out.

The first is that 800mg figure. That's the whole blend, split six ways, so no single active ingredient is present in more than a few hundred milligrams. Fibre research on satiety generally works in the range of grams per day, not fractions of a gram. A 5g sachet simply cannot carry a therapeutic fibre dose and still taste like berries.

The second is that the individual amounts inside the blend aren't broken out. You can see what's in it. You can't see how much of each, which makes it impossible to line any ingredient up against the dose used in the studies Feel refers to.

Can a drink really raise your own GLP-1?

Yes, a little, and that's the frustrating part of this whole category. The mechanism is real.

Your gut releases GLP-1 in response to food, particularly protein and fermentable fibre. Fibre that reaches the colon intact gets fermented by bacteria into short-chain fatty acids, and those signal the L-cells in your gut wall to release GLP-1 and PYY, the two hormones most involved in feeling full. That's why a bowl of lentils keeps you satisfied longer than a slice of white toast with the same calories. If you want the longer version, we've written about how GLP-1 actually works in the body.

So a product built from prebiotic fibre, polyphenols and a probiotic strain isn't nonsense. The question is one of scale.

What the evidence behind the GLP-1 claim actually says

Feel does point at research, which puts it ahead of most supplements in this space. Read it closely, though, and the picture is narrower than the marketing suggests.

The figure that gets quoted most is a 51.8% increase in GLP-1 secretion. On Feel's own product page that number sits under a heading that reads "Appetite hormones (in vitro)". In vitro means cells in a dish. It's a legitimate first step in developing an ingredient, and it tells you almost nothing about what happens in a person who eats dinner.

Feel also cites a human study: Huang and colleagues, published in the Journal of Obesity & Weight Loss Therapy in 2026, on postprandial GLP-1 secretion and glycaemic response. Feel's own description says the study found that "a similar multi-ingredient formula" was linked to higher satiety hormone responses after meals. Similar, not identical. And the outcomes measured were hormone levels and post-meal glucose, not body weight.

There is, as far as we can find, no published trial in which people took Feel Pro Metabolic for 12 or 24 weeks and were weighed at the end. That's the number that would answer the question everyone is actually asking, and it doesn't exist yet.

None of this makes the product a scam. It makes it unproven, which is a different and much more common thing. We've made the same point about berberine and about GLP-1 patches, and it applies to most of the supplement aisle.

How does it compare with Mounjaro and Wegovy?

This comparison is unavoidable, because Feel's marketing invites it. Here's the honest version.

Those trial figures come from SURMOUNT-1 and STEP-1, both published in the New England Journal of Medicine, both placebo-controlled, both with thousands of participants. They are the benchmark any weight loss product gets measured against, and the gap between "20.9% of body weight over 72 weeks" and "no weight outcome published" is not a small one.

That doesn't automatically mean medication is the right answer for you. It means the two things aren't really in the same category, and comparing them on price alone will mislead you.

What does Feel Pro Metabolic cost?

At the time of writing, Feel lists a 30-sachet month at roughly £33 on subscription and around £46 as a one-off, with 90-day bundles at about £99.50. Call it a little over £1 a day, or just under £400 a year if you subscribe and stay on it.

Feel asks for patience: a minimum of 12 weeks of daily use, with best results at 24 weeks. That's a reasonable request for a gut-microbiome product. It also means committing close to £100 before you can fairly judge whether anything has changed, and around £200 before you reach the point the brand says gives the best results.

For comparison, you could buy a kilo of red lentils, a bag of oats, a tub of Greek yoghurt and a punnet of apples every week for less, and get more fermentable fibre than 800mg of blend can deliver.

Is it safe?

For most healthy adults, the ingredients look benign. Zinc at 2mg is a fifth of the daily reference intake, nowhere near a level of concern. Bifidobacterium breve is one of the better-studied probiotic strains. Polyphenols from apple and black tea are food.

A few things are worth flagging:

• It contains soy peptide, so it's off-limits if you have a soy allergy.
• Erythritol and isomalt are sugar alcohols. In some people they cause bloating, wind or loose stools, particularly in the first week.
• Prebiotic fibre can do the same. If you already have IBS, introduce it slowly or skip it.
• If you're pregnant, breastfeeding, taking immunosuppressants, or managing diabetes with insulin or a sulfonylurea, check with your GP or pharmacist before starting any supplement aimed at blood sugar.

Safe and effective are separate questions, though. The main risk here isn't harm. It's spending six months and a couple of hundred pounds on a product that was never going to move the needle much, while the thing that would have helped waits.

Who might it suit, and who it won't

It might suit you if your diet is low in fibre, you find supplements easier to stick to than cooking, and your goal is modest: slightly better fullness between meals, a gentler blood sugar curve, a more varied gut microbiome. Some people genuinely do report fewer evening cravings, and a daily ritual before dinner is a reasonable habit anchor even if the sachet itself does little.

It probably won't suit you if you have a substantial amount of weight to lose, if you've already tried the fibre-and-protein route without much success, or if what you're dealing with is the constant background hum of food noise rather than ordinary hunger. That's a hormonal signal that 800mg of plant extract is unlikely to quiet.

Cheaper ways to raise your own GLP-1

If the appeal of Pro Metabolic is the mechanism rather than the brand, you can chase the same mechanism through food, and at doses that actually match the research.

Protein first, and early. Twenty-five to thirty grams at breakfast does more for mid-morning appetite than almost any supplement, because protein triggers GLP-1 and PYY release directly.

Fermentable fibre in gram quantities. Lentils, beans, chickpeas, oats, barley, cold potatoes and slightly green bananas all reach the colon partly intact. Government guidelines put the target at 30g of fibre a day, and most UK adults manage about 20g, so there's real room to move there.

Plant variety over probiotic capsules. Eating a wide range of different plant foods across the week does more for microbial diversity than one strain in a sachet, and it costs nothing extra if you're already shopping.

Vinegar before a carb-heavy meal, if you like the taste. The effect on post-meal glucose is small and real.

None of this is exciting. It's also the part that works whether or not you ever buy a supplement, and it's the foundation any medication is prescribed on top of. We go into more of this in our guide to appetite suppressants and our wider look at weight loss supplements.

This article is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare professional before starting any treatment.