Boden, G., She, P., Mozzoli, M., et al
10.2105/ajph.2005.073213 47 ShenkJ
There is evidence (see this study) the ketogenic diets (think: low in carbohydrates), and higher in protein and fats can be beneficial
Change in weight and body mass index (BMI) (primary outcomes) and changes in cardiometabolic risk factors (secondary outcomes
A well-rounded diet that includes sources of L-carnitine supplements, such as meat, fish, and dairy products, can also be helpful for recovery after exercise
However, anecdotal reports from online forums cited in a 2025 systematic review included anxiety and panic attacks, depression and anhedonia, insomnia, heart palpitations, fatigue and weakness, and loss of appetite