Scarsdale diet

[2][3] The diet restricts certain foods but allows an unrestricted amount of animal protein, especially eggs, fish, lean meats and poultry.

[2] To eat on Sundays, the diet recommends "plenty of steak" with tomatoes, celery or brussels sprouts.

[4] The book was originally published in 1978[5] and received an unexpected boost in popular sales when its author, Herman Tarnower, was murdered in 1980 by his jilted lover Jean Harris.

[7] People following the diet can lose much weight at first, but this loss is generally not sustained any better than with normal calorie restriction.

[9] Negative effects of the diet include constipation, nausea, weakness and bad breath due to ketosis.