What is nutrient timing? Is it still part of fitness training after 2021? Healthy Life News What is nutrient timing? Is it still part of fitness training after 2021? Jefferey Metcalfe November 7, 2021 Our bodies have a natural biological clock called the circadian rhythm. Every action of the human body... Read More Read more about What is nutrient timing? Is it still part of fitness training after 2021?