Zone 2 Endurance Nutrition

02/21/2026

Starting Block by Zone 2 Endurance Nutrition was engineered for endurance athletes and backed by science and experience.

Try some today and experience how the combination of Peak O2, L-Citrulline, tart cherry extract, electrolytes, and just the right amount of caffeine can supercharge your training.

Link in bio!

02/21/2026

Training in 20° weather for a race in three weeks that could be 80°+.

What could go wrong?

At least the preworkout hit just right.

01/29/2026

Traveling for work provides the opportunity to explore interesting parts of the country that I wouldn’t normally visit.

On this trip I got to see the legendary Alamo, which I’m ashamed to admit I first learned about by watching Peewee’s Big Adventure.

A scoop of Starting Block in the morning for the win!

01/14/2026

Running before the sun comes up?

I spent years searching for a preworkout supplement that would propel me on early morning runs.

✅ Just enough caffeine to wake me up and enhance endurance, but allow me to maintain a zone 2 heart rate on the easy days.

✅ Runner friendly ingredients like Peak O2, L-Citrulline, electrolytes, and tart cherry extract for VO2 maximization and recovery.

✅ A great tasting cherry limeade flavor that doesn’t need to be brewed like coffee and can be enjoyed as soon as I’m out of bed.

Starting Block has it all and it won’t have you crashing out on your desk like an overloaded bodybuilding preworkout drink.

Hit the link in the bio to try it today!

01/01/2026

Happy New Year from Zone 2 Endurance Nutrition!!

➡️ 73 days until Ironman Dallas-Little Elm 70.3

➡️ 164 days until Ironman Rockford 70.3

What should I plan for the second half of the year? Hyrox, marathon, ultramarathon?

Regardless, Starting Block will be flowing all year!

12/27/2025

The science is clear:

👊 The right dose of caffeine improves endurance performance by reducing perceived effort, preserving glycogen stores, and enhancing muscle function.

👊 Peak O2 boosts performance by improving oxygen utilization and power output while reducing fatigue and lactate buildup.

👊 L-Citrulline helps runners by increasing blood flow through nitric oxide production and improving oxygen/nutrient delivery to muscles during workouts.

👊 Tart Cherry provides an antioxidant rush that reduces muscle soreness and inflammation, improves sleep quality, and helps runners recover faster.

One formula has all of these:

Starting Block by Zone 2 Endurance Nutrition - a preworkout formula engineered for endurance and hybrid athletes.

Click the link in the bio to try it today!

12/25/2025

🎄Merry Christmas from Zone 2 Endurance Nutrition!!

It’s a day for celebration and relaxation. It also marks just 80 days until Ironman Dallas-Little Elm 70.3!

I slammed some Starting Block and grabbed a quick, cinnamon roll powered hour on the trainer.

Hit the link in our bio and use code SANTARUN for 20% off through Dec 31. Your Spring race will be here before you know it!

12/14/2025

Medal Sunday and half marathon PR for Zone 2 Endurance runner Troy, !

Let’s go!

12/07/2025

12/02/2025

I’ve been an endurance athlete for 10 years, completing 4 Ironman races, multiple 70.3’s, and logging thousands of miles on roads, trails, and water.

But my first love, discovered in high school, was being in the gym lifting heavy ass weights. I used all the old-school preworkouts like NO XPLODE, Jack3d (the original banned formula 😂), C4 and others.

They’re all fun, but the hyper caffeinated, tingly face feeling did not lend itself well to endurance sports, where we’re often training in targeted heart rate zones.

I played mad scientist for years mixing individual supplements together until I achieved a blend that worked both on the endurance course and in the weight room.

A reasonable level of caffeine, VO2 max boosters, a vasodilator, tart cherry for recovery, electrolytes - it’s optimized in every way for the hybrid athlete and it’s now on the market and available for everyone.

Click the link in our bio to try our formula and let us know what you think!

11/27/2025

Zone 2 Endurance Nutrition runner Troy Northrup rocked his Turkey Trot all the way to a 5K PR!

Congrats on a stellar race!

11/27/2025

Laced up the carbon racers for the first time in months and ran my way to 3rd place in my age group in the Terre Haute, IN Turkey Trot.

I haven’t been training for speed, but Starting Block gave me the caffeine boost, vasodilation, and oxygen delivery I needed to gut out some faster miles.

When traveling for the holidays, how can you resist the local 5K with Santa Claus and wooden spoon age group awards?!

Happy Thanksgiving from Zone 2 Endurance Nutrition!!