No more artificial sweeteners and additives

Naturally Sweetened Whey Protein, Clear Protein, and Vegan Protein without Artificial Sweeteners

As a father-son team, we wanted to develop a protein that tastes good and that we ourselves would enjoy drinking daily – without artificial sweeteners or additives.

🏆 Empfohlen von Peter Wälti - Mister Natural Olympia Sieger 2022

„Ich setze bewusst auf natürliche Zutaten – deshalb vertraue ich KG1 Nutrition.“

Choose your flavor and learn more.

4.9/5 from real customer reviews

Vegan Protein & Performance Bundles

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⭐What our customers say

  • ⭐⭐⭐⭐⭐

    "My absolute favorite. Light natural sweetness, creamy, really pleasant hazelnut flavor."

    “ Vegan Protein Hazelnut Nougat
    — Peter Wälti , ✔ verified athlete

  • ⭐⭐⭐⭐⭐

    "The powder dissolves perfectly, is very light and tastes natural – not at all artificial."
    Whey Protein Banana Split
    — Tina , ✔ verified purchase

  • ⭐⭐⭐⭐⭐

    "Refreshing, easily soluble, no foaming. Truly a clear protein – I'll buy it again."
    Clear Vegan Protein Cherry
    — JK ✔ verified purchase

  • ⭐⭐⭐⭐⭐

    "Refreshing, motivating, it accompanies my training with a fruity, subtle power drink."
    EAA Mango Passion Fruit
    — Simone H., ✔ verified purchase

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Product groups

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Products for top athletes

Peter Wälti – Natural Mister Olympia 2022 (USA)

"I rely on KG1 Nutrition because I need pure products without artificial sweeteners and additives."

View Peter Wälti's career profile

Peter Wälti is a successful Swiss natural bodybuilder from Giswil, currently living in Hergiswil in the canton of Nidwalden. He has made a name for himself in the "Men's Physique" category, where not only muscle mass but also overall appearance and stage presence are judged.
Some career highlights
• Autumn Championship 2021 : Wälti won the Men's Physique category. He owed this success to a new training plan and a diet based on the latest scientific findings. His defined musculature and stage presence impressed the judges.
• World Championships 2022: At the INBA Natural Bodybuilding and Fitness World Championships in Florence, Wälti took second place in the Men's Physique category. He emphasized the importance of posing and stage presence for his success.
• Swiss Championship 2022: At the Swiss Championship of the Bodybuilding and Fitness Federation in Estavayer, Wälti achieved first place in the "Men's Physique" category. He described this success as the fulfillment of a long-held dream.
• European Championship 2022: In October 2022, Wälti won his first European Championship title in the Men's Physique category at the Natural Fitness and Bodybuilding European Championships in Budapest. This also meant he earned his professional license, which now entitled him to participate in professional and well-funded competitions.
• Mister Olympia 2022: Just a few weeks after his European Championship title, Wälti won the Mister Olympia title in the Men's Physique class at the Natural Fitness and Bodybuilding competition in Las Vegas. He prevailed against 400 athletes from around the world.
Peter Wälti's training philosophy follows a holistic approach in natural bodybuilding.
He places great emphasis on scientifically sound nutrition, disciplined training, and a strong stage presence. His successes are the result of years of hard work and a deep understanding of the demands of the sport. With his achievements, Wälti has established himself as one of Europe's leading natural bodybuilders and serves as an inspiration to many for a healthy and performance-oriented lifestyle. For him, a meticulously planned diet and targeted supplementation are the foundation of his success.

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Our partners

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FAQ / KG1 Nutrition – Frequently Asked Questions

What makes KG1 Nutrition Protein special?

KG1 Nutrition stands for radical simplicity:

❌ no sucralose

❌ no aspartame

❌ no acesulfame K

❌ no xanthan gum

👉 Instead: agave syrup powder & a hint of stevia

👉 Result: natural taste without artificial aftertaste

In short: Fewer ingredients. More honesty.

How does protein without artificial sweeteners taste?

Unlike what you might be used to – and that's precisely the advantage.

Our protein is:

  • lightly sweetened
  • natural in flavor
  • not overly sweet

👉 No artificial "candy flavor," but a shake you can drink every day without ever getting tired of it.

Is protein without sucralose better tolerated?

Yes, protein powder without sucralose is often better tolerated – especially by sensitive stomachs.

👉 Learn more about protein powder tolerance here.

Why does KG1 Nutrition not use sucralose, aspartame, and xanthan gum?

Because we are convinced: A good product doesn't need artificial additives.

Many conventional proteins contain:

  • artificial sweeteners for extreme sweetness
  • additives for consistency

👉 We deliberately take a different approach:

clean, reduced, and transparent

Can protein powder be heated, boiled, or fried?

Yes – and this is exactly where KG1 shows its strength 👍

Our protein is perfect for:

  • Pancakes
  • Porridge
  • Kaiserschmarrn (shredded pancake)
  • Baking recipes

👉 Many protein powders with sweeteners like sucralose can develop an off-taste when heated

👉 KG1 remains even when heated:
natural in taste – without an artificial aftertaste

Learn more about why protein powder with sucralose can be problematic when heated here.

Who is KG1 Nutrition suitable for?

For everyone who:

  • consciously wants to avoid artificial additives
  • is looking for a clean protein without unnecessary extras
  • values natural taste over excessive sweetness

👉 Whether for everyday life, sports, or conscious nutrition

Is the protein sweet enough, though?

Yes – but consciously lightly sweetened.

If you're used to heavily sweetened shakes, KG1 may taste milder at first.

👉 Many appreciate exactly that after a short time – because it's more natural and pleasant.

Why "less is more"?

Because we believe a good product doesn't need tricks.

👉 fewer ingredients
👉 more transparency
👉 better feeling

KG1 Nutrition is not an overloaded fitness product.

It's protein in its most honest form.

Let customers speak for us

from 23 reviews

schnell, freundlich und unkompliziert. Immer wieder gerne.

Simone H.
KG1 Nutrition - Premium Protein Powder Schweiz

Top, damit wurde Magerquark zu meinem Lieblingsfrühstück!

Simone H.
Whey Protein Banana Split 908g

Schmeckt gut!

Stefanie B.
EAA Mango Maracuja 500g - Essential Amino Acids | KG1 Nutrition

Schmeckt sehr fein - weniger süss als andere Wheys aber dafür ohne Sucralose.

Stefanie B.
WHEY Protein Lemon Cheesecake 908g

Lemon Cheesecake mein Lieblingsgeschmack, leicht, aromatisch und mit einem Hauch an Vanille. Sehr angenehm und überhaupt nicht künstlich.

J.K.
WHEY Protein Lemon Cheesecake 908g

Leicht, aromatisch und perfekt abgestimmt – der Lemon-Cheesecake-Geschmack ist richtig gut getroffen und überhaupt nicht künstlich.

J.
KG1 Nutrition - Premium Protein Powder Schweiz

Sehr gut!

E.A.
WHEY Protein Banana Split 30g Probierbeutel

Tip top

F.D.
KG1 Nutrition Shaker 600ml schwarz

Mein Begleiter in den morgendlichen Tagesstart, leckerer leicht cremiger Coffee-Geschmack, einfach Top .

Anonym
WHEY Protein Coffee Classic 908g

Super

P.K.
Vegan Protein Hazelnut-Nougat 908g

Ich bin vom KG1 Whey Protein Banana Split voll überzeugt.
Das Pulver löst sich perfekt auf, ist sehr leicht und schmeckt natürlich und überhaupt nicht künstlich.
Der Banana-Split-Geschmack wurde richtig gut getroffen.

Tina
Whey Protein Banana Split 908g

Nur positiv. Degustation, Bestellung und Lieferung sowie beim Trinken. Sind sie mal nicht dabei, fehlt etwas. Während und nach dem Training mittlerweilen ein fester Bestandteil.

Simone H.
KG1 Nutrition - Premium Protein Powder Schweiz

Trotz Degustation sehr positiv überrascht. Frische- und Erholungskick, der einem in kurzer Zeit Erholung bringt.

Simone H.
Clear Vegan Protein Cherry 454g

Erfrischend und motivierend, begleitet mein Training mit einem fruchtigen, dezenten Powerdrink.

Simone H.
EAA Mango Maracuja 500g - Essential Amino Acids | KG1 Nutrition

Très bien

B.Z.
Clear Vegan Protein Cherry 454g