Those who continue to lose weight after the first week do so because they decrease their intake of calories. By greatly limiting the variety and number of foods that are allowed, there is automatically a reduction in the amount of food that is consumed. This often leads to boredom, and cravings over the long run for foods that are high in sugar and fat. Reduced athletic performance. Excess protein and fat can impair athletic performance and interfere with effective exercise regimens.
Blood pressure rises with age.
Gout risk increases. A low-carb diet consisting of meat, poultry, nuts, seeds, eggs and seafood are all fairly high in purines, and lead to excess uric acid in the blood. The excess intake of protein, especially from animal sources, will over time increase the loss of calcium in the urine, which can be a contributing factor to the development of osteoporosis. Dizziness or fainting. Orthostatic hypotension, or a rapid drop in blood pressure when you move from a prone position to standing, is caused by a loss of fluid and electrolytes, and reduced activity in your sympathetic nervous system.