CrossFit Nutrition I Training Guide

Study Notes

The document is the CrossFit Nutrition I Training Guide
It is version 1.3 and was last updated on March 17, 2022
The guide includes a disclaimer, an explanation of how to use it, an introduction, the science of sickness, health markers, and a table of contents
The guide covers the science behind sickness, including the role of insulin and chronic disease, and various health markers like body composition, resting heart rate, and blood lipids
The guide uses the term "sickness-wellness-fitness continuum" to describe a spectrum where individuals can be classified based on their health status
CrossFit, LLC is the copyright holder for the guide

The guide is designed to help learn about CrossFit Nutrition
It is recommended to read the guide at least once before attending any CrossFit Nutrition courses
The guide is not intended to be a substitute for advice from a healthcare professional
The guide is subject to change
The guide uses bold terms for key concepts, and definitions for these are provided in the glossary at the end of the guide

Explains why many people experience chronic disease and poor health
The burden of chronic disease is high
Insulin plays a crucial role in managing blood sugar levels
Insulin resistance can lead to increased blood sugar, weight gain and inflammation
Insulin sensitivity is a measure of how effectively insulin works to control blood sugar
Improving insulin sensitivity is essential for good health

Health markers are used to measure health
Different health markers are used to assess an individual's "sickness-wellness-fitness continuum" status
Health markers are useful for identifying areas for improvement
Health markers can provide insights into metabolic fitness
Body composition, resting heart rate, heart-rate variability, blood lipids, triglycerides, blood sugar, C-reactive protein, and bone density are examples of health markers
Body composition is a measure of the percentage of body weight that is fat and lean mass
Resting heart rate is the number of times the heart beats per minute when at rest
Heart-rate variability (HRV) is a measure of the variation in time between heartbeats
Blood lipids are fats in the blood, including cholesterol and triglycerides
C-reactive protein (CRP) is a marker of inflammation
Bone density is a measure of the strength of bones
Health markers are not a perfect reflection of health
It is important to consider all aspects of health, not just one or two markers
The guide provides a table classifying body-fat percentage on the sickness-wellness-fitness continuum.
The guide provides a table detailing health markers on the sickness-wellness-fitness continuum

The main focus of the guide is chronic disease.
Chronic disease is a significant burden with health care costs and productivity loss.
Insulin plays a key role in regulating blood sugar levels.
Excessive insulin can lead to metabolic dysfunction and chronic disease.

Health markers are used to assess an individual's health status and metabolic fitness.
Different markers indicate different levels of sickness, wellness, and fitness.
Anthropomorphic measurements like height, weight, and body mass index (BMI) are important markers.
Body composition, including body fat percentage, is a key indicator of health.
Essential fat is necessary for organ function, while nonessential fat is stored and can increase health risks.
Body fat percentage is associated with various health outcomes, such as cardiovascular disease and diabetes.
Reducing body fat can improve health and lower risks.
Resting heart rate and heart rate variability (HRV) provide insights into cardiovascular health.
Blood lipids, including cholesterol and triglycerides, are indicators of cardiovascular risk.
Blood sugar levels are a measure of glucose metabolism and can indicate diabetes risk.
C-reactive protein (CRP) is a marker of inflammation, which is linked to chronic diseases.