From Muscle Fiber to Dietary Fiber: New Connections with Muscle Gain and Fat Loss

By Katie Mark Feb 05, 2015

When we read the words “dietary fiber” on cereal box labels and in trendy fitness articles, we first think about how it affects our digestive health.  However, we found new research demonstrating how increasing your dietary fiber intake can help you increase muscle mass and decrease body fat. In this article, we will explain the differences between fiber’s two forms and look at research investigating fiber’s impact on four biomarkers InsideTracker improves: cholesterol, blood glucose, sex hormone-binding globulin (SHBG) and testosterone. Learn how InsideTracker can help you maximize your health by tracking your biomarkers during a research-based dietary intervention such as increased fiber intake.

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The Science Behind Testosterone Biomarkers

By Ray Nguyen Feb 26, 2014

Testosterone is a steroid hormone that is essential for muscle development and strength, bone health, sexual function, overall energy, and athletic performance. Although both men and women produce testosterone, women normally have very little of this hormone - a fraction of the amount that men typically have. However, having too much or too little testosterone can cause problems. Excess testosterone decreases the levels of HDL (good) cholesterol, affects heart health, and impairs sexual and reproductive function. In contrast, low testosterone can make you feel tired, uninterested in sex, and less competitive, as well as diminishing your athletic performance. Possible causes of low testosterone include overtraining and low levels of zinc and magnesium.

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