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This 2020 study found body fat and anaerobic fatigue tolerance and power — not overall strength or aerobic capacity — most accurately predicted Murph times in a small group of trained CrossFit athletes.

This 2019 review summarizes the mechanisms that regulate ketogenesis and analyzes the impact of ketones on specific disease states.

A New York Times article published in the 1990s encapsulated the fat-related hysteria of the day by recommending buttered movie popcorn come with a life insurance add-on. Meanwhile, Dr. Robert Atkins, creator of the Atkins diet, was touting a low-carb diet high in fat and ruffling more than a few feathers along the way. When Atkins died in 2003, his detractors were quick to blame his diet, even if that meant distorting the facts and breaching several codes of ethics.

In a significant victory for CrossFit affiliates and trainers, on June 30, 2020, Florida Governor Ron DeSantis signed the Occupational Freedom and Opportunity Act (HB 1193), permitting CrossFit trainers across the state to provide nutrition guidance to their members and clients. Previously, Florida law only permitted dietitians and other select licensed professionals to provide nutrition recommendations to their clients. CrossFit, Inc. has been actively engaged with this specific issue on behalf of its Florida affiliates and trainers and commends the state legislature and governor for this much-needed action.

Diabetics following a low-carbohydrate diet for three months were able to reduce their daily insulin use (and in nearly one-third of cases, discontinue insulin entirely) alongside significant weight loss and improvements in HbA1c.

Because academics “gain credit from publishing” and quantity is more important than quality, many publish closely related papers that add redundancy to medical research. This problem is compounded by pharmaceutical companies commissioning repeat publication of favorable studies. Though many think such practices are harmless, Richard Smith argues they lead to bias in the evidence doctors use to inform their treatment decisions. Treatments “may seem more effective than they are," which leads Smith to conclude redundant publication "pollutes medical evidence."

The mission of the CrossFit Scholarship is to spark meaningful health-care changes in underrepresented and underserved communities by providing foundational health and fitness education through free access to the CrossFit Level 1 Certificate Course. 

Strength is essential to gymnastics. It allows both continual development of skills and virtuosity of movement in body-weight training. Beyond that, strength is an asset that reduces the chances of injury.

A 2017 review summarizes mechanisms by which obesity may contribute to age-related diseases, including arthritis and dementia.

This June 2020 review by Ron Krauss, Arne Astrup, et al. concludes that guidelines to reduce saturated fat intake are not supported by a complete assessment of the evidence. Neither controlled studies nor mechanistic evidence indicates higher saturated fat intake increases risk of atherosclerosis or heart disease. Efforts to reduce saturated fat consumption may in fact harm public health by discouraging consumption of high-quality, nutrient-dense foods and implicitly encouraging consumption of refined grains and sugars — changes that are both more reliably linked to ill health than increased intake of saturated fat.

A low-carbohydrate, low-calorie diet significantly improved HbA1c in diabetics over 12 weeks.