SFuels RACE+ - 15 Serve Tub

Zone 4 represents a higher-intensity training (and racing) zone, including the key metabolic inflection point - anaerobic threshold/functional threshold power (FTP). At this intensity, the body is shifting its mix of fuel-substrates for energy. During half-full marathons and half-full long-course triathlons, athletes would spend most of their race-time between Zone 3 and Zone 4 intensities.

Through Zone 2 training and nutrition, athletes begin to raise fat oxidation rates at progressively higher intensities. By this, athletes become more efficient at using fat and sparing muscle glycogen. SFuels' athlete lab data shows cases of tripling fat oxidation rates, while doubling power (watts/bike). Sparing glycogen, through greater fat oxidation (lower lactate production) supports stable consistent energy at race-pace intensities.

While optimizing fat oxidation is key, training carbohydrate oxidation efficiency at Zone 4 race-intensities is also needed. Key enzymes involved in the final metabolism of carbohydrates need to also be trained during high-intensity workouts, in the same way we train fat-oxidation efficiency during Zone 2 workouts. SFuels recommends supporting carbohydrate oxidation efficiency training during Zone 4 training and racing by using maltodextrin and Cyclic-Dextrin to support rapid gut transit, while avoiding (no Fructose) the risks of blunted training adaptations.

Additionally, SFuels Zone 4 takes a 3-pronged approach to support Gut Resilience during High-Intensity training and racing. This includes -

1. A reduced carbohydrate dependency and intake will lower the known risks of high-carbohydrate consumption during endurance training/racing,

2. A gluten-free and sugar-alcohol-free formulation, SFuels Zone 4 drink mix minimizes the triggers known to add further risk of gut distress to training and racing. SFuels also excludes Fructose from its training products in avoiding Gut-membrane and aerobic adaptation de-training risks from day-to-day over-consumption of Fructose.

3. SFuels Extended Substrate uses select MCT fatty acids and Glutamine which both fuel and provide nutrition to support Gut membrane integrity, which supports building Gut resilience during training.

Maintaining proper electrolyte balance is crucial for athletes, especially during extended periods of training and in hot or humid conditions. To offset the electrolyte loss that occurs through sweat, higher doses of sodium and potassium supplementation are often warranted. Athletes who follow a lower carbohydrate protocol should supplement with electrolytes. It's important to consult with a healthcare provider or sports nutritionist to determine the appropriate electrolyte supplementation based on individual needs and training conditions.

How to Dose SFuels Race + Drink:
1. First 30-60mins of a Race (or high-intensity training session): Use SFuels TRAIN.
2. After the first 30-60mins switch to SFuels RACE+.
This protocol sets your metabolism for the most efficient simultaneous oxidation of fat, ketones, glucose, and Glutamine - providing resilient energy, preserved glycogen, and lowered lactate production. DOSAGE: 30-60 Grams Carbohydrate per hour (1-3 serves per hour). See Product Usage Guide for more dosage guidance relative to your race or training intensity.

Ingredients:
- Highly Branched Cyclic Dextrin
- Coconut Oil
- Collagen Peptides
- All-natural flavors
- Himalayan Rock Salt
- Magnesium Glycinate
- Potassium Gluconate
- Beet Juice Powder used for color
- Malic and Citric Acid
- Monk Fruit Extract