My story

As a Spanish national athlete, I thought I was doing everything right — until I tore my Achilles and lost out on my D1 scholarship in the USA.

I couldn't understand what had gone wrong.

I was put on the contraceptive pill, and suffered a constant injury cycle. I spent hours in supermarkets, trying to figure out what to eat and struggling with IBS. Nothing seemed to work.

Eventually, I was diagnosed with RED-S (Relative Energy Deficiency in Sport) and told to "eat more, train less." But there was no practical guidance, and no product built to help someone in my situation.

So I created one.

Most people haven't heard of REDs (also spelled RED-S)

But we see it everywhere.

REDs (Relative Energy Deficiency in Sport) is the clinical term for what happens when you don't eat enough to support your training, output, stress, recovery, and daily life (i.e., too much output for the input).

What is REDs?

REDs (Relative Energy Deficiency in Sport) is the clinical term for what happens when you don't eat enough to support your training, output, stress, recovery, and daily life (i.e., too much output for the input).

Who does it affect?

And it's not just elite athletes—it's people in the gym, doing classes, training for HYROX, running, lifting.

The impact on your body

Research shows low energy availability (LEA) can impact all 11 systems in the body, including hormones, bone health, metabolism, immunity, and recovery.

More training. Less food. Cutting carbs. It's often framed by society as discipline. But over time, the body goes into survival mode.

It shows up as:

  • Low energy during sessions
  • Poor recovery between workouts
  • Frequent injuries or niggles
  • Loss of appetite after training

And it's confusing… because you're doing more, not less. This is what under-fuelling looks like.

67.8% of athletes and active people experience REDs and 95.8% underfuel carbs

Read our Blog

The Under-Fuelling Problem

One of the biggest drivers of under-fuelling is not eating enough carbohydrates. Research shows:

Only ~4% of athletes meet recommended carbohydrate intake (Melin et al., BJSM)

Endurance athletes often require 3–12g of carbohydrate per kg of bodyweight per day, depending on training load

During longer sessions, 30–90g of carbs per hour is recommended to maintain performance (Jeukendrup et al.)

Yet modern sports nutrition and diet culture have shifted focus toward high protein, keto/low-carb approaches, and ultra-processed performance products which can harm teeth health and the gut. The result? Athletes are training and working hard — but not fuelling enough to support it.

This isn't just elite sport

Under-fuelling is seen across ALL sports, ALL ages, ALL genders, including:

  • Endurance (running, cycling, rowing)
  • High-intensity events like HYROX
  • Team sports and gym training
  • Busy, high-stress lifestyles

It's also influenced by behaviour. For example:

  • ADHD is linked to inconsistent eating patterns and meal skipping
  • Appetite often drops after intense training
  • Busy schedules make consistent fuelling difficult
  • Shift workers constantly on the go

So the issue isn't always knowledge — it's easy, accessible, practical solutions. That is why RED-Scue exists.