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Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
More than 4.7 million customers from all over the world
Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
More than 4.7 million customers from all over the world
Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
More than 4.7 million customers from all over the world
Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
More than 4.7 million customers from all over the world
020 8089 0131

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Emmanuelle
Emmanuelle
Star Star Star Star Star
5 / 5

I love coffee and now my favourite morning ritual is helping me maitain my weight, LOVE IT!

OK!FatBurn Coffee

Star Star Star Star Star
4.78 / 5
Verified 4698 Verified reviews

Coffee drink with 5-in-1 action for appetite and fatigue suppression²

With active ingredients L-carnitine, elderberry and guarana extract:

  • Suppresses feeling of hunger²
  • Suppresses fatigue²
  • L-carnitine plays a key role in body’s metabolism¹
  • Guarana has a favourable effect on digestion²
  • Helps with weight control³

Turn your coffee drinking ritual into a weight loss shortcut!

Neto 150 g | for 15 days
How to Use

Stir 10 g (1 tablespoon) of OK!FatBurn Coffee mixture into a cup (150 ml) of warm water or (plant) milk.

Warning:

OK!FatBurn Coffee is not a substitute for a balanced and varied diet and a healthy lifestyle. Use is not recommended for pregnant and breastfeeding women.

Store in a dry and cool place. Keep out of reach of children!

Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.

Key Ingredients

OK!FatBurn Coffee

Ingredients: rice drink powder (rice, oat beta-glucans, sunflower oil, salt), stabilizer: acacia gum, instant coffee (Coffea arabica L.), stabilizer: cellulose, L-carnitine, guarana seed extract (Paullinia cupana). elderberry extract (Sambucus nigra L.).

Contains naturally occurring sugars.

Nutritional Value
Per 100g
Energy value 1305 kJ / 311 kcal
Fat 2,4 g
Saturated fat 1,9 g
Carbohydrates 59 g
of which sugars 12 g
Fibre 23 g
Protein 2,9 g
Salt 0,2 g
Per serving (10g)
L-carnitine 100 mg
Instant coffee 1500 mg
Guarana extract 100 mg
Elderberry extract 50 mg
Caffeine 62 mg

 

Certifications

Why Independent Testing Is Essential At Nature’s Finest, we believe that wellness starts with trust.
Here’s what our testing covers:

  • Ingredient Precision: We verify that the nutrients listed on our labels are present in the exact amounts promised.
  • Purity & Cleanliness: Each product is screened for substances such as heavy metals (including mercury, lead, and arsenic), common allergens (like soy, dairy, nuts, and gluten), and microbial threats like E. coli and salmonella.
  • Nutrient Verification: We confirm that both macronutrients and micronutrients are present and potent.

Explore our IFS Food Standard certification—the highest level of quality assurance in the industry—and see why Nature’s Finest stands above the rest. View our certification here.

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Delivery in 2 business days
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Questions? Call us: 020 8089 0131

Reviews

4.78
★ ★ ★ ★ ★
Based on 4,698 reviews
5★
4,150
4★
306
3★
89
2★
53
1★
100
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Everything you need to know:

What makes OK!FatBurn Coffee different from regular coffee?

OK!FatBurn Coffee is a coffee drink with 5-in-1 for appetite and fatigue suppression². While it contains instant coffee (Coffea arabica L.) just like regular coffee, it’s enhanced with powerful active ingredients: L-carnitine (100mg), guarana extract (100mg), and elderberry extract (50mg) per serving.

This unique combination suppresses feeling of hunger² and suppresses fatigue², while guarana has a favourable effect on digestion² and elderberry helps with weight control³.

It’s the perfect alternative to regular coffee for those looking to support their weight management goals.

How does OK!FatBurn Coffee help with weight management?

Elderberry is traditionally used to facilitate the weight loss in addition to dietetic measures³ and helps to lose weight in addition to dietetic measures³. Guarana is traditionally used to help in weight control² and surpresses feeling of hunger² , so you can use this coffee drink to prevent eating more than you should.

Can OK!FatBurn Coffee help reduce my appetite and cravings?

Absolutely! OK!FatBurn Coffee suppresses feeling of hunger² thanks to guarana.

Will OK!FatBurn Coffee help me feel less tired throughout the day?

Yes! Each serving contains 62mg of caffeine from instant coffee and guarana extract. OK!FatBurn Coffee suppresses fatigue thanks to guarana. Guarana surpresses fatigue² and L-carnitine plays a key role in body’s metabolism¹.

Is OK!FatBurn Coffee suitable for maintaining weight after losing it?

Yes! OK!FatBurn Coffee is perfect for weight maintenance. Elderberry helps to maintain the weight³ and helps in weight control³, while guarana is traditionally used to help in weight control². This makes it an excellent choice for those who want to maintain their weight loss results.

Our customers also confirm it works

star star star star star 4.9 / 5
Margeret
star star star star star 5/5

After about one week of drinking, I already crave snacks less and generally feel less hungry. I have also noticed some weight loss!

Margeret
Alex
star star star star star 5/5

I noticed that my appetite was reduced. It also helps me feel less tired throughout my very busy day.

Alex
Eva
star star star star star 5/5

After just a few days I noticed that my appetite was reduced and I had less craving for sweets, and I lost a few inches around my waist after only 1 week!

Eva
Dayana
star star star star star 5/5

Ever since I started drinking this weight-loss coffee I feel incredible. I haven't been keeping track of pounds but my coworker noticed that I lost some weight. I am so happy!

Dayana
Olivia
star star star star star 5/5

I loooove coffee and I am very much into fitness, now my morning fatburn coffee helps me with that, too. Obsessed and ordering again for sure!

Olivia
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Revolutionary coffee for weight³ and appetite control²

Losing weight has never been easier!

Our top experts at Nature’s Finest are big fans of coffee, so they’ve taken extra care to develop a product that suppresses fatigue, has a beneficial effect on digestion² and helps you control your weight³.

OK!FatBurn Coffee is a delicious coffee drink with active ingredients that suppress hunger², beneficially affect digestion² and control weight³.

  • If you often crave snacks, sweets or junk food
  • If you tend to overeat or eat when bored
  • Can’t succeed with any weight loss attempt
Product option image

If you like the taste of coffee, this is the SOLUTION you've been waiting for!

It is the perfect alternative to regular coffee.

Product option image
Feature icon

Reduce fatigue²

Guarana, a natural extract, is known for its ability to boost energy levels, helping you stay active and focused throughout the day.

Feature icon

Suppress hunger²

Guarana also helps suppress the feeling of hunger, making it easier to manage your food intake.

Feature icon

Support weight control³

Elderberry extract is not only beneficial for supporting the immune system, but it also helps in weight control and eliminates overweight.

Why you should have your first cup of OK!Fatburn Coffee TODAY

Starting OK!FatBurn Coffee today:

  • You suppress feeling of hunger² starting with your first cup
  • You supress fatigue²
  • Guarana has a favourable effect on digestion²
  • Elderberry helps you with weight control³
  • Guarana helps you start strengthening immunity²

Starting OK!FatBurn Coffee LATER:

  • You postpone appetite suppression benefits
  • You delay fatigue suppression support
  • You continue without enhanced digestion support

Made from quality ingredients

L-Carnitine

1. L-Carnitine

L-carnitine is an amino acid derivative. It is a natural compound that is produced by the body itself or can be obtained from certain foods and food supplements.

Guarana

2. Guarana

Guarana contributes to fat metabolism, and suppresses feeling of hunger and fatigue, making this natural extract an efficient help in weight control.

Elderberry Extract

3. Elderberry Extract

Elderberry helps to supports the immune system, helps in weight control and helps to lose weight in addition to dietetic measures.

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Traceability of our raw materials

We select every ingredient with the utmost care and monitor it closely to ensure optimal efficacy—supported by scientifically proven effectiveness.
Our commitment to transparent traceability guarantees the integrity and excellence of every component in our products.
Our products are certified in accordance with the IFS Standard under registration number: 00063/0, and by KON-CERT under certificate number: EPR-26420/22-1.

High-quality ingredients

Carefully selected, pure formulation.

Carefully selected, pure formulation

Environmentally friendly packaging.

Less waste, more care for the planet

Third-party tested according to verified standards.

60-days-Money-back-Badge-Landing_EN-white-300x300-1-2.png

60-Day Money-Back Guarantee

To make your purchase risk-free, we offer a 60-day money-back guarantee.
If you’re not completely satisfied with the product, simply contact us—we’ll refund your money.

OK!FatBurn Coffee

OK!FatBurn Coffee

star star star star half star 4.78 / 5 check icon Verified reviews (4698)

5-in-1 action against fatigue² and feelings of hunger²

  • Suppresses feeling of hunger²
  • Suppresses fatigue²
  • L-carnitine plays a key role in body's metabolism¹
  • Guarana has a favourable effect on digestion²
  • Helps with weight control³

Frequently asked questions from our users

FAQ

How and why does it work?

This coffee drink contains powerful ingredients: L-carnitine, elderflower and guarana extract, that suppress fatigue² and feelings of hunger², and help you control your weight.3

FAQ

Who is it for?

OK!FatBurn Coffee is perfect for all those who want to suppress feelings hunger2, maintain their weight³  while enjoying a tasty coffee ritual.

FAQ

What ingredients does it contain?

Rice drink powder, acacia gum, coffee extract, coffee flavour, L-carnitine, guarana extract, elderberry extract.

FAQ

What does it taste like?

OK!FatBurn Coffee has a pleasant aroma of freshly brewed coffee.

FAQ

How long does shipping take?

We will do our best to process your order the same day and send it for delivery. On average, packages are delivered in 2 business days.

FAQ

What if I don't like it?

No worries! If the product does not meet your expectations, we offer a 60-day refund.

Previous
Next
Best seller badge
Emmanuelle
Emmanuelle
Star Star Star Star Star
5 / 5

I love coffee and now my favourite morning ritual is helping me maitain my weight, LOVE IT!

OK!FatBurn Coffee

Star Star Star Star Star
4.78 / 5
Verified 4698 Verified reviews

Coffee drink with 5-in-1 action for appetite and fatigue suppression²

With active ingredients L-carnitine, elderberry and guarana extract:

  • Suppresses feeling of hunger²
  • Suppresses fatigue²
  • L-carnitine plays a key role in body’s metabolism¹
  • Guarana has a favourable effect on digestion²
  • Helps with weight control³

Turn your coffee drinking ritual into a weight loss shortcut!

Neto 150 g | for 15 days
How to Use

Stir 10 g (1 tablespoon) of OK!FatBurn Coffee mixture into a cup (150 ml) of warm water or (plant) milk.

Warning:

OK!FatBurn Coffee is not a substitute for a balanced and varied diet and a healthy lifestyle. Use is not recommended for pregnant and breastfeeding women.

Store in a dry and cool place. Keep out of reach of children!

Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.

Key Ingredients

OK!FatBurn Coffee

Ingredients: rice drink powder (rice, oat beta-glucans, sunflower oil, salt), stabilizer: acacia gum, instant coffee (Coffea arabica L.), stabilizer: cellulose, L-carnitine, guarana seed extract (Paullinia cupana). elderberry extract (Sambucus nigra L.).

Contains naturally occurring sugars.

Nutritional Value
Per 100g
Energy value 1305 kJ / 311 kcal
Fat 2,4 g
Saturated fat 1,9 g
Carbohydrates 59 g
of which sugars 12 g
Fibre 23 g
Protein 2,9 g
Salt 0,2 g
Per serving (10g)
L-carnitine 100 mg
Instant coffee 1500 mg
Guarana extract 100 mg
Elderberry extract 50 mg
Caffeine 62 mg

 

Certifications

Why Independent Testing Is Essential At Nature’s Finest, we believe that wellness starts with trust.
Here’s what our testing covers:

  • Ingredient Precision: We verify that the nutrients listed on our labels are present in the exact amounts promised.
  • Purity & Cleanliness: Each product is screened for substances such as heavy metals (including mercury, lead, and arsenic), common allergens (like soy, dairy, nuts, and gluten), and microbial threats like E. coli and salmonella.
  • Nutrient Verification: We confirm that both macronutrients and micronutrients are present and potent.

Explore our IFS Food Standard certification—the highest level of quality assurance in the industry—and see why Nature’s Finest stands above the rest. View our certification here.

£31.90
-0%
Subscription
One-time purchase

Switch to subscription and save
For just you get the same. A simple way to enjoy the best prices. You can change or cancel your subscription at any time!

Add to cart ➝
Return guarantee icon 60-day money-back guarantee
Free delivery icon Free delivery over £50.00
Delivery in 2 business days
visa mastercard american_express paypal

Questions? Call us: 020 8089 0131

Customer Reviews

★ ★ ★ ★ ★
4,698
Verified reviews
4.8/5
Previous
★ ★ ★ ★ ★
Published 2 months ago by: Sheila Morris
all the items are good
★ ★ ★ ★ ★
Published 8 months ago by: Georgiana Mindru
I cannot wait for my order to arrive. Very good prices, easy to order. The best
★ ★ ★ ★ ★
Published 10 months ago by: gary logan
QUICK AND EASY.
★ ★ ★ ★ ★
Published 1 year ago by: Kellie Sherwood
Delicious flavour very enjoyable
★ ★ ★ ★ ★
Published 1 year ago by: Kellie Sherwood
All products are brilliant
★ ★ ★ ★ ★
Published 2 years ago by: Michelle Y.
★ ★ ★ ★ ★
Published 2 years ago by: Mary b.
★ ★ ★ ★ ★
Published 2 years ago by: Mary b.
Great product
★ ★ ★ ★ ★
Published 2 years ago by: Elaine T.
Love this product
★ ★ ★ ★ ★
Published 2 years ago by: Liam L.
Good product thanks nutrisslim I am very happy
★ ★ ★ ★ ★
Published 2 years ago by: Christine N.
Excellent products
★ ★ ★ ★ ★
Published 2 years ago by: Christine N.
Have been using various products
★ ★ ☆ ☆ ☆
Published 2 years ago by: Magennis S.
★ ★ ★ ★ ★
Published 2 years ago by: Andrzej K.
Very good service and great products.Good service.Thank you.
★ ★ ★ ★ ★
Published 2 years ago by: Lucy G.
★ ★ ★ ★ ★
Published 2 years ago by: Carolyne N.
The order was easy to make. Products are well displayed and I love the discounts. Looking forward to using the products. Have used the night fat burn before from my sister’s purchase and it was working wonders.
★ ★ ★ ★ ☆
Published 2 years ago by: Nadya S.
I think it’s too early to give my opinion. Working on flushing out some fluids. But
★ ★ ★ ★ ★
Published 2 years ago by: Marina B.
It’s helps with the bloating and my diverticulitis. Have a cup first thing in the morning and it helps with my problems
★ ★ ★ ★ ★
Published 2 years ago by: Jade H.
Really love the coffee but and night burn as a combination.
★ ★ ★ ★ ★
Published 2 years ago by: Mary Q.
I wish to thank you very much I appreciate your kindness
Next
Badge 1
Badge 2
Badge 3
Badge 4
Badge 5

Stir 10 g (1 tablespoon) of OK!FatBurn Coffee mixture into a cup (150 ml) of warm water or (plant) milk.

Warning:

OK!FatBurn Coffee is not a substitute for a balanced and varied diet and a healthy lifestyle. Use is not recommended for pregnant and breastfeeding women.

Store in a dry and cool place. Keep out of reach of children!

Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.

OK!FatBurn Coffee

Ingredients: rice drink powder (rice, oat beta-glucans, sunflower oil, salt), stabilizer: acacia gum, instant coffee (Coffea arabica L.), stabilizer: cellulose, L-carnitine, guarana seed extract (Paullinia cupana). elderberry extract (Sambucus nigra L.).

Contains naturally occurring sugars.

Per 100g
Energy value 1305 kJ / 311 kcal
Fat 2,4 g
Saturated fat 1,9 g
Carbohydrates 59 g
of which sugars 12 g
Fibre 23 g
Protein 2,9 g
Salt 0,2 g
Per serving (10g)
L-carnitine 100 mg
Instant coffee 1500 mg
Guarana extract 100 mg
Elderberry extract 50 mg
Caffeine 62 mg

 

Customer Reviews

  1. Sheila Morris (verified owner) –

    all the items are good

  2. Georgiana Mindru (verified owner) –

    I cannot wait for my order to arrive. Very good prices, easy to order. The best

  3. gary logan (verified owner) –

    QUICK AND EASY.

  4. Kellie Sherwood (verified owner) –

    Delicious flavour very enjoyable

  5. Kellie Sherwood (verified owner) –

    All products are brilliant

  6. Michelle Y. –

  7. Mary b. –

  8. Mary b. –

    Great product

  9. Elaine T. –

    Love this product

  10. Liam L. –

    Good product thanks nutrisslim I am very happy

  11. Christine N. –

    Excellent products

  12. Christine N. –

    Have been using various products

  13. Magennis S. –

  14. Andrzej K. –

    Very good service and great products.Good service.Thank you.

  15. Lucy G. –

  16. Carolyne N. –

    The order was easy to make. Products are well displayed and I love the discounts. Looking forward to using the products. Have used the night fat burn before from my sister’s purchase and it was working wonders.

  17. Nadya S. –

    I think it’s too early to give my opinion. Working on flushing out some fluids. But

  18. Marina B. –

    It’s helps with the bloating and my diverticulitis. Have a cup first thing in the morning and it helps with my problems

  19. Jade H. –

    Really love the coffee but and night burn as a combination.

  20. Mary Q. –

    I wish to thank you very much I appreciate your kindness

Frequently asked questions from our users

How long can I take it?

The product can be taken continuously for 6 months, after which we recommend taking a break for 1 month and repeating these intervals. For best results, we recommend taking the product for several months.

When is the best time to take it?

I recommend that the product is taken 10g (1 tablespoon) in the morning, preferably during breakfast.

Can pregnant women and nursing mothers consume it?

Pregnant and lactating women are discouraged from use.

Is it suitable for vegans?

Yes, the product is suitable for vegans and vegetarians.

Can I take it alongside medication?

Food supplements are foods that are intended to supplement your normal diet, if you are taking any medication, please consult your personal doctor before taking any food supplement.

What can I do if I don't like the taste? And can I mix it with boiling water

If you don’t like the taste, you can add a natural sweetener, milk or a vegetable drink.

Can children consume it? From what age can I consume the product?

The product may be consumed by persons over 15 years of age.

Diabetics and other health conditions?

This product is suitable for diabetics and in the case of other medical conditions we recommend consulting your personal physician.

Are there possible side effects?

The product is usually well tolerated and many users report no side effects. However, it is important to understand that each person reacts differently to our products. Please consult a nutritionist or doctor before use, especially if you have any health problems or are taking medication.

Advice from our experts in addition to eating the product?

1. regular physical activity 2. balanced diet 3. quality sleep 4. adequate hydration 5. limit calorie intake 6. reduced intake of sugars, salt and processed foods

Is the product suitable for both women and men?

Yes, the product is suitable for women and men.

Is the product suitable for people with high blood pressure and thyroid problems?

Persons with high blood pressure are advised to consult their personal physician before using this product as it may affect blood pressure.

Product not well mixed, lumps, contents floating on water?

Clumps are a perfectly normal occurrence in a powdered product that absorbs moisture. Floating contents are insoluble plants which do not affect the quality of the product. If the contents do not dissolve in water and/or bother you, you can remove them and they can also be eaten.

There are SIX beta glucans in the product, does the product really have no allergens?

The product does not contain gluten in its composition or traces, so it is suitable for people with coeliac disease, it contains gluten-free oats.

Why choose Nature’s Finest?

15

Years of tradition

400+

Unique products”

50+

Patented active ingredients

3mil+

Satisfied customers

Nature

We believe in the perfection of nature. Our commitment extends to the responsible sourcing of raw materials, including sustainability, ethics, and fair business practices. To reduce our carbon footprint, we use environmentally friendly packaging.

The effectiveness of our products is confirmed by verifiable and reproducible studies and research. All of our products are tested in independent laboratories, as our goal is to offer our customers only the highest-quality and most effective products for their money.

 
 

Nature offers effective solutions to many of the challenges we face. Our experienced development team harnesses and combines these exceptional substances in our products so the body can make optimal use of them. The active ingredients in our products are included in proven effective amounts—not just in small, negligible quantities.

We test our products through various user studies and trials to ensure their safety and effectiveness. We always listen closely to our customers’ feedback and take their opinions, reviews, and suggestions into account to ensure our products are truly tailored to their needs.

Meet our product development experts

We are proud that our team consists exclusively of top experts in nutrition and natural formulations, ensuring the development and outstanding quality of our products. With great dedication, they conduct studies and research and work closely with external laboratories, testing institutes, and other specialists to guarantee the highest quality and safety of our products.

Thanks to their extensive experience and industry expertise, our experts are committed to providing Nutrisslim customers with the most innovative products and to maintaining our status as one of the leading companies in the field of nutrition and dietary supplements.

Meta Bizjak

M.Sc. in Nutritional Engineering

Pia Fistrovič

Food and Nutrition Engineer

#WeAreNature

»Committed to bringing the most natural products to your home«

For over 15 years, Nature’s Finest has been dedicated to providing natural solutions for everyone who wants to overcome lifestyle-related challenges and discomforts. We use only 100% natural ingredients, produced traditionally, without additives or unnecessary processing. Whenever possible, we choose organically grown ingredients certified under SI-EKO-001.

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