Näak is your on-course nutrition at UTMB World Series.

Preserve your playground.

Every purchase you make creates positive change.

They inspire us. They will inspire you.

The ultimate guide to reach your ultra endurance goals.

Fuel your mind with nutrition tips and more.

Discover delicious and nutritious recipes.

Naakbar Ambassador Naakbar Ambassador
Mathieu Blanchard

Jeff Stren

Discipline Team Pro Ultra

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“Stay persistent, cultivate compassion, laugh with life, seek to create your own style and pursue your passions with unlimited gumption.”


Born, raised and based in Mill Valley, California at the base of Mt. Tamalpais, Jeffrey Stern is the Assistant Editor of UltraRunning Magazine, a dog lover, coach, and Salomon athlete with 15 years of experience in endurance sports.


2020 Fourmidable 50k



2021 The Canyons Endurance Runs 25k



2022 Quad Dipsea


Jeff's favorite fuel

Energy Waffle Variety pack

from €27,00 EUR
Quick Buy
Choose a Format
  • 12 Waffles 2.25€ / Waffle
  • 24 Waffles 2.08€ / Waffle
  • 36 Waffles 1.94€ / Waffle
Energy Drink Mix Lime 6 Serving packets

from €24,00 EUR
Quick Buy
Choose a Bag of 72g
  • 6 Bags €4.00 / Serving
  • 12 Bags €3.75 / Serving
  • 18 Bags €3.50 / Serving
Energy Bar Peanut Butter & Chocolate

from €39,00 EUR
Quick Buy
Choose a Box of 12
  • 12 Barres €3.25/ Barre
  • 24 Barres €3.00 / Barre
  • 36 Barres €2.78 / Barre

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