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How Blood Biomarker Levels Can Enhance Your Training

How Blood Biomarker Levels Can Enhance Your Training

Measure your nutrient levels, cholesterol, cortisol, hormones, and more!

Post sponsored by InsideTracker, founded in 2009 by top scientists from acclaimed universities in the fields of aging, genetics, and biology, InsideTracker is a truly personalized nutrition and performance system.


We are excited to announce our partnership with InsideTracker to help you optimize your training. To celebrate the launch of our new cookbook, Rise & Run, InsideTracker is offering a special discount for Run Fast Eat Slow fans. Read our personal insights from blood biomarker testing and grab the code below. 

From Elyse:

Shalane advised me to get an InsideTracker Ultimate Test at the start of my marathon training journey to check my nutrient, hormone, cholesterol, and other vital blood biomarker levels and I’m so glad that I did it. I’m obsessed with how much incredible information you can learn from blood biomarker testing. The insights and personalized recommendations from InsideTracker gave me confidence to take my training to the next level. 

The results showed me that eating wholesome real food and healthy fats is working for me. I didn’t have any nutrient deficiencies or hormone imbalances and I have optimized HDL “good” cholesterol. After college running, my body felt broken, but now the InsideTracker test showed me that I’m stronger at 40 than I was in my 20s, in fact my Inner Age is 33! ☺ 

The biggest insight I discovered is that my cortisol levels are too high. I’m not surprised after the stress of the past year. Seeing this result in writing helped me put a game plan in place to reduce my anxiety. I’ve started doing yoga again and I now prioritize sleep over Netflix (I completely sign off all digital devices in the evening). I’m also incorporating more omega-3’s into my diet and foods known to help stress including fish, eggs, pumpkin seeds, Brazil nuts, blueberries, and dark chocolate. 

I can’t wait to take the Ultimate Test again as I continue to increase my mileage to ensure none of my nutrient levels drop. Even with optimal nutrition and cooking ALL THE TIME, it’s easy to become deficient in any number of vitamins and minerals since running places such a huge demand on our bodies. I will continue to watch my vitamin B12 and iron levels (specifically ferritin) since those were on the lower end of optimal. InsideTracker makes it easy to get regular testing since they offer mobile blood draw for busy parents. 

From Shalane: 

Blood biomarker testing is like looking underneath the hood of a car. It makes me a much better competitive athlete. I can't imagine not using InsideTracker. It is vital to creating my health goals. InsideTracker helps me prioritize longevity. I want to be in coaching for a long time and I still want to be a great athlete 20 years down the line. I have really big goals that I want to accomplish. 

As I get older, I still want to be running and I still want to have plenty of energy for my athletes and my family. I’ve made some small manageable changes based on my results! 

I’ve added in more soluble fiber like beans and oats to help my cholesterol. I’m also focusing more on my recovery and emphasizing sleep. 

I like to try and have a calm morning hour to myself to drink coffee, organize and stretch before my son wakes up! Using my @insidetracker app daily has helped keep me accountable 👊🏼


Use code RISEANDRUN26 for 26.2% off plans and more, and receive a FREE InnerAge test. Learn more and use your discount here. Rise & Run offer valid through November 30, 2021.


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