Testosterone works hard in the body, maintaining everything from bone density to muscle mass to sex drive and beyond. A significant drop in testosterone levels can result in a reduced sex drive, increased body fat, decreased motivation, and sleep problems like insomnia. These symptoms can add up to chronic low energy, and mental and physical fatigue.
As the name says, a low-carb diet restricts the type and amount of carbohydrates you eat. Carbohydrates are a type of calorie-providing macronutrient found in many foods and beverages. Many carbohydrates occur naturally in plant-based foods, such as grains.
Vegetables are part of a healthy diet. The definition of diet is lower in fat, sugar, calories, etc. than the regular product. An example of diet is soda with zero calories. Diet is defined as a person's regularly consumed food and drink or it can mean regulating food intake to lose or gain weight. 1  An example of diet is the eating of only vegetables.  An example of diet is the cutting back to precisely 1800 calories per day.