In development
Gels
Gold Standard Energy Gel
Green Apple
$2.50
Gold Standard range
Fuel every step
Engineered carbohydrate and electrolyte fuel for athletes who train on a plan, not a hunch.
29
Free calculators
389
Journal articles
4
Tool categories
0
Sign-ups required
Shop by category
All productsThe range
In development, not yet on sale. Prices are indicative.
In development
Gels
Gold Standard Energy Gel
Wild Berry
$2.50
Gels
Gold Standard Energy Gel
Zesty Citrus
$2.50
Recovery
Recovery Magnesium Gel
Green Apple
$2.75
Free, no sign-up
Performance calculators
Calculators for pacing, fuelling and hydration. Built on published sports-science methods, not rules of thumb.
Running Pace Calculator
Turn a target time into pace per km and mile, from 5K to marathon.
Race Day Nutrition Planner
Build a gel schedule from race distance, goal time and body weight.
Sweat Rate Calculator
Measure your true sweat rate and know how much to drink per hour.
Carb Loading Calculator
Daily carbohydrate targets for the three days before you race.
Cycling Power Zones
Seven training zones derived from your current FTP.
Electrolyte Calculator
Hourly sodium, potassium and magnesium needs by weight and heat.
From the journal
All articlesNutrition
The Science Behind Energy Gels
Understanding how energy gels work at a cellular level — and how to time them for peak performance during your race or training session.
· 6 min read
Hydration
Hydration Strategy for Endurance Athletes
Dehydration of just 2% body weight impairs performance by up to 20%. Here's a evidence-based framework for staying ahead of your fluid needs.
· 7 min read
Recovery
Post-Workout Recovery: The 30-Minute Window
What you do in the first 30 minutes after training can dramatically affect how quickly you recover and how strong you come back for the next session.
· 8 min read
What we have built so far
Tools first, products next
NorthLine is a new sports nutrition company. The product range is still in development, so what we have shipped so far is the part that costs you nothing: 29 calculators and 389 articles.
Our research team publishes the reasoning behind each formulation in the journal, and the calculators that power our race plans are free for anyone to use — customer or not.
Read our story