NORTHLINE PERFORMANCE
OUR
STORY.
A new sports nutrition company, building in the open. Here is what exists so far, and what does not yet.
WHY WE STARTED WITH TOOLS
THE CALCULATORS
CAME FIRST
NorthLine is a new company and our products are still in development. Rather than wait, we started by building the part of a sports nutrition brand that is useful whether or not you ever buy anything: the maths.
There are now 29 free calculators covering pacing, fuelling, hydration, training load and blood markers, and 389 articles behind them. Every calculator states the published method it implements in its header — Riegel, Cooper, Karvonen, the IOC RED-S thresholds — so you can check the working rather than take our word for it.
Where the science is contested we say so on the tool itself. Our acute:chronic workload calculator sets out the case against the metric alongside the case for it. Our menstrual cycle calculator states plainly that the evidence does not support periodising training by cycle phase, which is the opposite of what most of that category sells.
When products do ship, the same standard applies: we will describe what they actually are, and what has actually been tested.
WHAT WE STAND FOR
GOLD STANDARD
PRINCIPLES
Science First
Our formulation work is grounded in peer-reviewed sports science, and the calculators already cite the methods they use. When products exist, doses will be stated plainly on the label — no proprietary blends.
Race-Tested
Lab results mean nothing if a product fails at km 30. Nothing will go on sale until it has been tested in real race conditions, not just on paper.
No Shortcuts
Products are in development and nothing has shipped. We would rather say that plainly than describe a supply chain that does not exist yet.