LIMITLESS SPORTS
A specific blueprint for long bike rides to restore hormonal health and maximize energy availability.
Fueling during the ride is your strongest weapon against RED-S.
Training in a fasted state spikes cortisol (stress hormone). High cortisol signals the brain to "shut down" the reproductive system (the period) to save energy.
Eating during a ride tells your brain that energy is abundant. This "safety signal" is what allows your body to restart the menstrual cycle.
For any ride longer than 90 minutes, your target is 60 to 90 grams of carbohydrates per hour. This is precise and non-negotiable for recovery.
Consistency = Hormonal Restoration
Start the ride with full tanks (Breakfast).
First dose. 25g Carbs (Gel or Snack).
Second dose. 25g Carbs (Liquid mix).
Third dose. 25g Carbs (Solid bar).
75g reached for the first hour.
Do not wait until you are hungry. Hunger is a late signal that your body is already in a deficit. Start eating within the first 20-30 minutes of your ride.
80g mixes (like Beta Fuel). The easiest way to hit high targets without chewing. Sip every 5-10 minutes.
25-40g per gel. Quick, simple sugars. Best for when the intensity increases or your stomach feels full.
Rice cakes, dates, bananas. Great for long, steady endurance. Real food keeps your gut happy over 3+ hours.
Using different types of carbs (Glucose + Fructose) allows your body to absorb more than 60g per hour without stomach issues.
Example hour:
1 Bottle (40g) + 1 Gel (25g) + 1 small Date (10g) = 75g total.
| Ride Duration | Carb Target | Recommended Fuel Mix |
|---|---|---|
| Under 90 Minutes | 30-45g / hour | 1 Bottle of sports drink mix. |
| 2 to 4 Hours | 60-75g / hour | 1 Bottle + 1 Gel + 1 Solid Snack. |
| 4+ Hours (Endurance) | 75-90g / hour | Liquid calories + Real food (Rice cakes). |
| Interval Sessions | 90g+ / hour | High-carb liquids & Gels ONLY. |
Recovery starts the second you step off the bike. To restore the tanks, you need a 4:1 ratio of Carbs to Protein within 30 minutes.
Goal: 1.2g Carbs per kg of bodyweight + 25g Protein. This halts muscle breakdown immediately.
Fueled training keeps your "Stress Horizon" low, allowing hormones to remain active.
Your period is your "fifth vital sign." If it is missing, your body is in an energy crisis. Use this precise fueling plan to end that crisis.
CONSISTENCY > INTENSITY