South Beach Diet

The South Beach diet was also written by a cardiologist, Dr Agatson. He is critical of the high saturated fat content of Dr Atkins diet and reports that ketosis can cause some dehydration, although phase 1 of his diet is likely to cause ketosis. However, he also believes that high carbohydrate diets, particularly where the carbohydrates have a high glycemic index, promote hyperglycemia, which he perceives to promote high levels of insulin secretion to cause obesity..

The only nutritional supplement recommended is a fish oil supplement. The dose of fish oil is not discussed.
Please note Fish oil supplements in excess of 3 g daily may adversely affect glycemic control.
The diet follows three phases:

Phase 1

For two weeks, carbohydrate rich foods including fruits are excluded. 'Normal' helpings of lean meat, poultry, fish, shellfish and low fat cheese are encouraged. A liberal intake of vegetables is recommended. Restricted portions of nuts are recommended. Weight loss of 8-13 lbs is expected. Comment: Calculation of the phase 1 diet menu suggested that the carbohydrate intake prescribed would be likely to generate ketosis.

Phase 2

The addition of low glycemic index fruits and vegetables is recommended as long as weight loss is maintained.

Phase 3

Once the target weight has been achieved, the addition of lower glycemic index fruits and vegetables and grain products are recommended until weight maintenance is achieved.