-50%

Magdalena Rybarikova - tennis player

5 / 5

A top product to help me keep my cravings in check and maitain my form.

OK!FatBurn bundle

Food supplement with sweetener

4.86 / 5

9204 Verified reviews

An effective formula that contributes to weight loss

Inhibits up to 77% of carbohydrate-digesting enzymes ¹*
Inhibits up to 63% of fat-digesting enzymes ¹*
Helps eliminate fat deposits and consequently contributes to weight loss ¹
Contributes to normal energy-yielding metabolism ⁴
With added power of L-Tyrosine and L-Carnitine
After 8 weeks, 76% users say ID-alG™ induces weight-loss**
72% would continue using ID-alG™**

* In tubo test of the inhibition properties of ID-alG™ on pancreatic lipase and bacterial amylase.

** Evaluation of ID-alG™’s weight management effect on overweight women. Monocentric, randomized, placebo controlled clinical study run in March 2010, on 56 women using 400 mg of ID-alG™ daily for 8 weeks

Net 300 g | for 30 days

How to Use

Twice a day, mix 5 g (1 scoop) in a glass of water and drink. We recommend that you drink it before the main meals. Weighing is recommended for accurate dosing.

Warnings:

The recommended daily intake or dose should not be exceeded. A foodsupplement is not a substitute for a balanced and varied diet. Ingestion during pregnancy and breastfeeding is not recommended. 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 – food supplement with sweetener.

Tapioca starch, sweetener erythritol, vitamin C (ascorbic acid), ID-alG ™ [(seaweed extract (Ascophyllum nodosum), grape extract powder (Vitis vinifera, seeds)], lemon flavor (4%), L-carnitine, L-tyrosine, stabilizer: cellulose, beetroot concentrate (maltodextrin, beetroot powder (Beta vulgaris)) (1.5%), Sweetener: steviol glycosides from stevia

Nutritional Value

	Per 5g
Vitamin C	250 mg (312 % NRV*)
ID-alG ™	200 mg
L-carnitine	150 mg
L-thyrosine	100 mg

* NRV = nutritional reference value

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.

£33.88 £67.80

50%

£33.88 /pack Save £33.92

55%

£30.50 /pack Save £74.60

Everything you need to know:

Which ingredient helps me block fat and carb absorption?

ID-alG™ is a patented brown seaweed extract that blocks a certain number of enzymes that digest carbohydrates and fats. This reduces fats and carbs assimilation and contributes to significant weight loss. ¹

What makes this weight loss formula so effective?

OK!Fatburn is an effective weight loss formula that inhibits carb and fat digestion enzymes with the power of ID-alG™. The triple-action formula contributes to normal energy-yielding metabolism⁴ with added power of L-tyrosine and L-Carnitine. Studies confirm significant weight loss correlated with fat mass. ¹

How do digestive enzymes affect my weight loss efforts?

90% of lipid (fat) intake is hydrolyzed by lipases, while carbohydrate digestion is mainly carried out by the amylases. ID-alG™ inhibits amylase and lipase, which means reduction of carbs and fat assimilation from the nutrients you consume.¹

What results can I expect from using OK!Fatburn?

Studies show that 76% believe ID-alG™ induces weight-loss and 72% would continue using ID-alG™. Users experience visible effects after 8 weeks of use with significant reduction in carbs assimilation. Real customers report they lost weight with OK!Fatburn and their testimonials prove its effectiveness.¹

Our customers also confirm it works

4.9 / 5

5/5

Superb product to help with weight loss, I needed a little help with my body shape before my holiday and I can assure you it really works :)

Margaret

5/5

OK!FatBurn truly works! I of course like to do a bit of sport, so the effects are even better :)

Eve

5/5

I lost signifant weight with OK!Fatburn, it's incredible and I keep getting compliments!

Maya

5/5

I’ve been drinking this for a bit more than two months and my coworkers say I’ve slimmed down noticeably.

Monica

Introducing OK!Fatburn:

Triple-action formula with a brown seaweed extract for significant weight loss¹

ID-alG™ is a patented formula of brown seaweed extract with unrivalled weight management properties.

It has exceptional properties due to the content of specific long-chain polyphenols called phlorotannins and inhibit the activity of the two main digestive enzymes:

Lipase (fat-digesting enzyme) activity inhibition
Amylase (carbohydrate-digesting enzyme) activity inhibition

ID-alG™ blocks a big part both amylase and lipase enzymes, which means reduction of carbs and fat assimilation – nutrients responsible for more than 85% of the caloric intake.

OK!FatBurn contributes to significant weight loss. ¹

Blocks more than half of carbohydrate-digesting enzymes¹

Thanks to ID-alG™, a patented brown seaweed extract, the product reduces the activity of the enzyme amylase, which is responsible for breaking down carbohydrates.¹

Blocks more than half of fat-digesting enzymes¹

ID-alG™ also helps limit the action of lipase, the enzyme responsible for digesting fats.¹

Results, demonstrated by studies

In studies, ID-alG™ was shown to support weight loss, closely correlated with fat mass, and fat reduction when used consistently over 16 weeks.¹

Consumers’ satisfaction

Preliminary study questionnaires assess the satisfaction of users:

76% believe ID-alG™ induces weight-loss**
72% would continue using ID-alG™**
72% would buy ID-alG™**

** Evaluation of ID-alG™’s weight management effect on overweight women. Monocentric, randomized, placebo controlled clinical study run in March 2010, on 56 women using 400 mg of ID-alG™ daily for 8 weeks

All you need is 3 minutes a day

A smarter way to support your healthy lifestyle

Step 1

Mix one scoop of OK!FatBurn with 200 ml of water.

Step 2

Stir vigorously until completely dissolved (1 min).

Step 3

Drink twice a day with food or an empty stomach.

Why you should start taking OK!Fatburn today

Starting OK!Fatburn TODAY:

You contribute to weight loss ¹
You reduce fat and carb assimilation with ID-alG™¹
You support body fat mass reduction¹
You enjoy in a delicious, self-care ritual
You boost your confidence immediately

Starting OK!Fatburn later:

You delay significant weight loss progress
You postpone fat and carb assimilation reduction
You delay body shape improvement progress

Made from quality ingredients

1. ID-alG™

ID-alG™ is a grape seed extract and an extract of the brown seaweed Ascophyllum nodosum, which is rich in long-chain polyphenols called phlorotannins. Ascophyllum nodosum reduces fat absorption and helps eliminate fat deposits, which consequently affects body weight.

2. 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.

3. L-Tyrosine

L-Tyrosine is a non-essential amino acid that occurs naturally in the human body and in a variety of protein-containing foods. It is a building block used by the body in several biological processes and is a precursor to various naturally occurring compounds.

4. Vitamin C

Vitamin C plays a role in the protection of cells from oxidative stress. It contributes to the functioning of the nervous system, has a role in the functioning of the immune system and contributes to the reduction of tiredness and fatigue . Vitamin C also contributes to normal collagen formation.

Traceability of our ingredients

Discover nature through our natural products! We carefully select and trace every ingredient to ensure optimal effectiveness, backed by scientific evidence. Our commitment to transparent traceability guarantees the integrity and excellence of every component of our products. Our products are certified to the IFS standard (registration number: 00063/0) and also hold an ECO certificate (certification number: EPR-26420/22-1).

High-quality ingredients

Carefully selected, pure ingredients.
No unnecessary additives

Only what your body needs. Nothing more.
Carefully verified purity and safety

Independently tested to ensure compliance with quality standards.

60-day money-back guarantee

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

-50%

OK!FatBurn bundle

4.86 / 5

Verified reviews (9204)

Enjoy your favourite foods without guilt and lose weight!

Inhibits up to 77% of carbohydrate digesting enzymes ¹
Inhibits up to 63% of fat digesting enzymes ¹
Helps eliminate fat deposits ¹
Added power of L-Tyrosine and L-Carnitine
Visible effect after 8 weeks of use

Frequently asked questions from our users

How and why does it work?

With the main active ingredient ID-alG™, it has been proven to help lose body fat and therefore weight. ID-alG™ is a brown seaweed extract that inhibits the activity of two major digestive enzymes, lipase and amylase.

Who is it for?

It is for anyone who wants to lose excess weight and fat and has difficulty following diets or reducing calorie intake.

What ingredients does it contain?

Vitamin C (ascorbic acid), ID-alG™, natural lemon flavour, L-carnitine, L-tyrosine, natural beetroot colour (1,5 %), sweetener steviol glycosides.

What does it taste like?

OK!FatBurn has a refreshing lemon taste.

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.

What if I don't like it?

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

-50%

Magdalena Rybarikova - tennis player

5 / 5

A top product to help me keep my cravings in check and maitain my form.

OK!FatBurn bundle

Food supplement with sweetener

4.86 / 5

9204 Verified reviews

An effective formula that contributes to weight loss

Inhibits up to 77% of carbohydrate-digesting enzymes ¹*
Inhibits up to 63% of fat-digesting enzymes ¹*
Helps eliminate fat deposits and consequently contributes to weight loss ¹
Contributes to normal energy-yielding metabolism ⁴
With added power of L-Tyrosine and L-Carnitine
After 8 weeks, 76% users say ID-alG™ induces weight-loss**
72% would continue using ID-alG™**

* In tubo test of the inhibition properties of ID-alG™ on pancreatic lipase and bacterial amylase.

** Evaluation of ID-alG™’s weight management effect on overweight women. Monocentric, randomized, placebo controlled clinical study run in March 2010, on 56 women using 400 mg of ID-alG™ daily for 8 weeks

Net 300 g | for 30 days

How to Use

Twice a day, mix 5 g (1 scoop) in a glass of water and drink. We recommend that you drink it before the main meals. Weighing is recommended for accurate dosing.

Warnings:

Key Ingredients

OK!FatBurn – food supplement with sweetener.

Nutritional Value

	Per 5g
Vitamin C	250 mg (312 % NRV*)
ID-alG ™	200 mg
L-carnitine	150 mg
L-thyrosine	100 mg

* NRV = nutritional reference value

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.

£33.88 £67.80

50%

£33.88 /pack Save £33.92

55%

£30.50 /pack Save £74.60

Customer Reviews

★ ★ ★ ★ ★

9,204

Verified reviews

4.9/5

★ ★ ★ ★ ★

Published 2 years ago by: Angela K.

Very easy to use the site. Good service and communication

★ ★ ★ ★ ★

Published 3 years ago by: ALINA G.

★ ★ ★ ☆ ☆

Published 1 year ago by: Trevor Lloyd-Jones

Great

★ ★ ★ ★ ★

Published 1 year ago by: Akinsola Akinyemi

Very good and fantastic

★ ★ ★ ★ ★

Published 1 year ago by: iwona swiderska

Dziękuję polecam ❤️

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Brian Jones

Verified reviewer

Excellent product

wes kibby

Verified reviewer

I’m really happy with all the products I’ve received and would highly recommend them. There’s so much choice, and everything I’ve tried so far has genuinely worked and made me feel good both inside and out. The offers and discounts are amazing, and I’ve never had a single issue - the service is always smooth and hassle-free.

Laura Crears

Verified reviewer

These products are brilliant this coming from a sceptic. Completed 2 months and ordered more. I have lost weight, have so much more energy and anxiety has significantly reduced.

Sue Potts

Verified reviewer

Great products

Michael Smith

Verified reviewer

Excellent communication and product

Michael Smith

Verified reviewer

Good information and reviews

Paula Murray

Verified reviewer

Quick and easy to navigate site to find what I needed. Let's hope something works.

Georgiana Mindru

Verified reviewer

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

suzanne Bowker

Verified reviewer

Good

Andrew Spencer

Verified reviewer

Excellent product

Why choose Nature's Finest?

16 years of tradition
400+ unique products
50+ patented active ingredients
4.7M+ satisfied customers

Natural

We believe in the perfection of nature. Our commitment includes responsible sourcing of raw materials, based on sustainability, ethics and fair business practices.

Proven

The effectiveness of our products is confirmed by verifiable and repeatable studies and research. All our products are tested in independent laboratories, because our goal is to offer our customers products of the highest quality and real effectiveness, in line with their investment.

Effective

Nature offers effective solutions to many of the challenges we face. Our experienced development team uses and combines these exceptional substances in our products so the body can make optimal use of them. The active ingredients in our formulas are present in doses with proven efficacy, not just in negligible amounts.

Tested

We test our products through various customer studies and trials to guarantee their safety and effectiveness. We always carefully listen to our customers' feedback and take their opinions, criticism and suggestions into account to ensure our products are truly tailored to their needs.

Meet our development experts

We are proud to have in our team only top experts in the fields of nutrition and natural formulations, who guarantee the development and exceptional quality of our products. With exceptional dedication, they lead studies and research and collaborate with external laboratories, inspection bodies and other experts to ensure the highest quality and safety of our products. Thanks to their rich experience and recognized expertise in the industry, our experts strive to offer customers the most innovative products, thereby helping to maintain our position among the leading companies in the field of nutrition and dietary supplements.

Meta Bizjak Nutrition engineer
Pia Fistrović Food science and nutrition engineer

#WeAreNature

“Dedicated to bringing the most natural products into your home”

For more than 16 years, Nature's Finest has been dedicated to providing natural solutions for everyone who wants to overcome the challenges and discomforts associated with their lifestyle. We use only natural ingredients, produced traditionally, without additives or unnecessary processing. Whenever possible, we choose organically grown ingredients certified to SI-EKO-001.

OK!FatBurn bundle

An effective formula that contributes to weight loss

* In tubo test of the inhibition properties of ID-alG™ on pancreatic lipase and bacterial amylase.

** Evaluation of ID-alG™’s weight management effect on overweight women. Monocentric, randomized, placebo controlled clinical study run in March 2010, on 56 women using 400 mg of ID-alG™ daily for 8 weeks

Review

Everything you need to know:

Our customers also confirm it works

Introducing OK!Fatburn:

OK!FatBurn contributes to significant weight loss. ¹

** Evaluation of ID-alG™’s weight management effect on overweight women. Monocentric, randomized, placebo controlled clinical study run in March 2010, on 56 women using 400 mg of ID-alG™ daily for 8 weeks

All you need is 3 minutes a day

A smarter way to support your healthy lifestyle

Why you should start taking OK!Fatburn today

Starting OK!Fatburn TODAY:

Starting OK!Fatburn later:

1. ID-alG™

2. L-Carnitine

3. L-Tyrosine

4. Vitamin C

Traceability of our ingredients

High-quality ingredients

No unnecessary additives

Carefully verified purity and safety

60-day money-back guarantee

OK!FatBurn bundle

Frequently asked questions from our users

How and why does it work?

Who is it for?

What ingredients does it contain?

What does it taste like?

How long does shipping take?

What if I don't like it?

OK!FatBurn bundle

An effective formula that contributes to weight loss

* In tubo test of the inhibition properties of ID-alG™ on pancreatic lipase and bacterial amylase.

** Evaluation of ID-alG™’s weight management effect on overweight women. Monocentric, randomized, placebo controlled clinical study run in March 2010, on 56 women using 400 mg of ID-alG™ daily for 8 weeks

Customer Reviews

Why choose Nature's Finest?

Meet our development experts

#WeAreNature

Help & Information