The Shangri-la diet guidelines

The Shangri-la diet in its present form requires the dieter to take either a small quantity of sugar water or a bland oil (extra-light olive oil, canola oil, or highly refined walnut oil) twice or three times a day, at least an hour before or an hour after consuming anything with flavor (including toothpaste or mouthwash).

Roberts recommends 1 to 2 tablespoons of oil per day, which comes to 120 to 240 calories. The sugar mixture that Roberts used while losing weight was about 6 tablespoons of fructose (about 275 calories) diluted in a quart of water. According to Roberts, the oil or sugar water gives the dieter some calories in a nutrient-dense substance without flavor, thus breaking the learned association between flavor and calories.

In effect, breaking this learned association tricks the body into lowering its set point, suppressing appetite, and leading to weight loss without hunger cravings. Roberts suggests taking the doses of oil or sugar water first thing in the morning and just before bedtime, but says that dieters should feel free to experiment and take their doses at other times that may work better for them.

The dieter need not make any other changes in the types of food they prefer. Roberts does, however, suggest ways in which people using the Shangri-la diet can lower their set point even further:

-Avoid food commercials, cooking shows on television, and other visual stimuli related to feed. Seeing images of food is thought to increase the appetite.

-Choose foods with a low glycemic index (GI). The glycemic index is a measurement system that evaluates the carbohydrates in specific foods for their effect on the body’s blood sugar level within two hours after a meal. Foods with a low GI index are thought to satisfy hunger longer because they do not increase blood sugar levels as rapidly as foods with a high GI index.

-Eat very bland foods other than the doses of oil (sushi, boiled rice, egg whites, etc.) to help break the association between flavor and calorie intake.

-Practice ‘‘crazy spicing,’’ which is Roberts’s term for adding 10 to 20 spices chosen at random to one’s food so that the original flavor is unrecognizable. As Roberts says, ‘‘No flavor recognition=no set point increase = lower set point = weight loss.’’

As of 2007, Roberts maintains that he has kept his weight at about 150 pounds by eating one 900-calorie meal per day, 150 calories of fruit sugar dissolved in water, and 2 pieces of fresh fruit (about 75 calories each).

The function of the Shangri-la diet is to induce and maintain weight loss through an approach intended to reset the dieter’s set point and improve control of appetite, rather than by eliminating specific food categories or restricting portion size.