The SUN FatBurn Challenge 2026

Maximum fat burning. No hunger pangs. Full power.

Lose weight with ketogenic high-performance nutrition instead of crash diets. With only 800 kcal daily, you'll feel full, energized, and completely nourished. No diet stress, no calorie counting, just natural fat burning.

Start the FatBurn Challenge 2026
Blackcurrant

Why SUN works when other diets fail.

Traditional diets drain your energy because they focus on deprivation instead of nourishment. With SUN Minimeal, you only lose fat – not your power. Despite consuming only 800 kcal per day, your body is fully supplied with all essential nutrients.

Conventional diets

  • Nutrient deficiency due to calorie reduction
  • Energy loss, fatigue & decline in performance
  • Complex planning, calorie counting & cooking
  • Cravings due to unstable blood sugar levels
  • Difficult to maintain over several days

SUN Minimeal Fatburn Challenge

  • Complete nutrient supply – with only 800 kcal (according to the CRON principle)
  • Stable energy & full performance – even in a calorie deficit
  • Simple & ready-to-eat – no preparation needed
  • No hunger pangs – thanks to an optimal macronutrient distribution
  • Consistently implementable – without compromise, without weak phases

A 10-Day Routine That Feels Light

SUN MINIMEAL Pack

You experience what nutrition feels like when it's whole, reduced, and consistent. No cooking, no planning stress, and no daily decisions.

  • No preparation Your meal is ready to eat at any time
  • No thinking No thinking required - clear routine instead of lengthy research
  • Helps to reduce nutrient deficiencies Despite low calorie intake, your body gets what it needs.
    (according to Regulation (EU) 1169/2011)
  • Suitable for everyday use Perfectly suited for work, travel, home, or sports
SUN MINIMEAL Pack

How it works

Step 1 Image
STEP 1 Choose weight loss goal You get everything for 10 days
Step 2 Image
STEP 2 Start routine Clear daily structure, digitally supported
Step 13Image
STEP 3 Stay tuned Community + inspiration, fewer decisions
Step 1. Choose weight loss goal You get everything for 10 days
Step 2. Start routine Clear daily structure, digitally supported
Step 3. Stay tuned Community + inspiration, fewer decisions

Why the SUN Minimeal Fatburn Challenge works better than any classic diet

The 5 most frequent questions – simply answered.

Why am I not hungry despite 800 kcal?

Because SUN Minimeal doesn't let your body go hungry, but nourishes it. The balanced combination of high-quality proteins, fats, and complex carbohydrates keeps your blood sugar stable – eliminating cravings.

How can my body get everything it needs with so few calories?

It's not about how many calories you consume, but how many nutrients. MINIMEALS provide all essential nutrients in the right amount, ensuring your body is optimally nourished, even with reduced calorie intake.

Am I losing muscle or really just fat?

With a calorie intake of 800 kcal with MINIMEALS, you usually lose mainly fat and not muscle. MINIMEALS contain a sufficient amount of protein (33%), which is important to minimize muscle breakdown. A complete protein supply helps maintain muscle mass during a diet.

How does this affect my digestion and how I feel overall?

MINIMEALS contain prebiotic fiber that supports gut flora and promotes digestion. This can lead to better nutrient absorption and fewer digestive issues. MINIMEALS are designed to be easily digestible. Many users report not feeling heavy or bloated after consumption, which enhances overall well-being.

Can I really keep this up – without cooking, stress, or effort?

Yes, you can easily stick to your diet with MINIMEALS, without cooking, stress, or a lot of effort. With MINIMEALS, you get nutrients in pre-defined portions, which helps you control calorie intake and avoid overeating; you don't have to worry about putting your meals together. Plus, you can take MINIMEALS anywhere – whether in the office, when traveling, or at home. This makes it easy to adapt your diet to your lifestyle. The SUN community (free platform for customers) offers support and tips, which can help you stay motivated and achieve your goals.

Why the Fat Burn Challenge Works

Many programs fail not due to a lack of motivation but because of unclear structure and unbalanced supply. SUN relies on clear portions, reduced calories, and nutrient density. The basis of a CRON diet:

  • Coordinated nutrient supply: closes typical supply gaps*

  • A MINIMEAL - simple routine: portioned and always with you

  • Reduced Calories, Stable Energy: Fewer calories with improved nutrient supply enable ketosis.

Fewer calories – without sacrificing the essentials.

90%

the testers felt more energy and satiety

82%

experience less cravings despite calorie reduction.

91%

gain more time in everyday life and feel no sacrifice.

89%

report more power and better focus.

The new SUN MINIMEAL Black Currant

Developed for a structured, reduced-calorie phase – compact, nutritionally complete, and suitable for everyday use.

Tagesleistung
Balanced diet Balanced diet
Full-Cost Quality Full-Cost Quality
Prebiotic Fiber Prebiotic Fiber
Keto Meal Keto Meal
Allergen
Free
*** Allergen
Free
***
Plant-Based Plant-Based

Everything you need for 10 days

An easy-to-implement 10-day program – with a clear structure, a supportive community, and digital assistance for your well-being.

SUN MINIMEAL Blackcurrant

The basis of the challenge for a reduced diet phase with optimal nutrient supply (NSV II*).

Your personal Challenge Calculator

Find out how many MINIMEALS and days you need to reach your individual goal.

Clear 10-Day Routine

With daily impulses that motivate you and help you make decisions.

Digital Support

Access to a digital challenge area with statistics and daily logging of weight and waist circumference.

Accompanied by Joey Kelly

A pro who has done it themselves and knows exactly what it takes.

Community Exchange

A strong community area for exchange, motivation, and support.

Professional Support

Joey Kelly is an endurance athlete, adventurer, and entrepreneur. For decades, he has stood for discipline, perseverance, and mental strength. In 2025, he has already guided over 2,000 people through the SUN FatBurn Challenge. Joey motivates participants to adopt a clear attitude: Stay persistent. Simplify. Implement. This very experience makes him the perfect companion for your FatBurn Challenge.

Expert with SUN product
EXPERT OPINION
Joey Kelly
Musician, extreme athlete & entrepreneur
"SUN MINIMEAL is for me the easiest, safest, and most precise way to fully nourish myself in everyday life."

Customer Testimonials & Expert Reviews

EXPERT OPINION
Expert
Hansi Hinterseer
Ski legend & entertainer
In the mountains, balance is key – and in life, it's no different. I need energy that doesn't slow me down, but propels me forward. SUN MINIMEAL is exactly that: pure nutrient power in natural form. No unnecessary baggage, just the best for my body and the environment. This is nutrition that keeps up with me – whether on the ski slopes or on tour!
Jochen Schweizer
Expert
Jochen Schweizer
Jury member on "Die Höhle der Löwen" (Shark Tank), entrepreneur, and extreme athlete
Extreme challenges demand extreme solutions. Whether in the desert or on 100-kilometer marches – I can't afford to get tired. SUN MINIMEAL gives me the strength to keep going. No sugar crash, no empty calories – just pure energy. And the best part: it not only saves time but also protects our planet!

DEVELOPED AND TESTED BY EXPERTS

After over 10 years of research and 15,000 compared food combinations, we developed the most powerful meal replacement with SUN MINIMEAL. 100% nutritionally complete, wholesome, and natural.
Professor Roland Hennes
Nutritional Physician, Heidelberg University
Thousands of customers – one opinion.
From the everyday consumer to the nutrition expert – everyone agrees: two drinks a day can transform your well-being.
Healthy and delicious
We can't live without Minimeals anymore; they're especially great on vacation or other trips. No more rest stop food, just MINIMEALS...
Marina Tach
Verified Buyer
Food for body and mind
The product (MINIMEAL) is absolutely amazing. A top food product to eat a balanced and healthy diet, and as in my case...
Bernhard Eberle
Verified Buyer
It's indispensable now
Can't live without it anymore. Been a member since November 2023 and haven't regretted a single second. Thanks to Wolfgang Grabher and his vision.
Regina Leer
Verified Buyer

Who the Fatburn Challenge 2026 is ideal for

The FatBurn Challenge is for people who want to feel lighter, clearer, and more energetic – and lose weight in the process.
You want to lose weight without constantly counting calories
You want more energy & mental clarity in your everyday life
You want to achieve a better body feeling again
You want a simple routine instead of daily decisions
You're up for a challenge with others

“The Fatburn Challenge is your chance to consciously step out of your daily nutrition chaos for ten days. Experience what nourishment, focus, and relief feel like.”

  • Zum Produkt
  • Zur Anwendung
  • Tipps und Tricks
How does the Fat Burn Challenge work?
What will I eat during the challenge?
Do I have to starve?
Is the challenge suitable for everyday life?
Can I cancel the challenge?
What happens after the 10 days?
Any further questions?
Couldn't find the answer you were looking for? Please chat with our friendly team.

Start the FatBurn Challenge 2026

Lose weight while feeling fitter, clearer, and more energetic in your daily life.

Minimeal Triple
  • SUN MINIMEAL Black Currant (Freely selectable package size)
  • 10-day clear challenge framework
  • Your personal Challenge Calculator
  • Log weight and waist circumference
  • Supportive Community
  • Inspiration & Coaching by Joey Kelly
Start the FatBurn Challenge 2026