Table 1.

Description of named dietary programme categories used in this systematic review

Named dietary programme category	Description
Low fat	Total fat intake reduced to 20-30% of caloric intake; saturated fat intake reduced to <10% of caloric intake
Very low fat	Total fat intake reduced to 10-20% of caloric intake
Combined low fat and low sodium	As in low fat diet, plus sodium reduction (<2.4 g/day)
Modified fat	No decrease in total fat intake, but increase in polyunsaturated to saturated fat ratio
Mediterranean	Increased fish, fruit, and vegetable intake; increased intake of monounsaturated fats (eg, olive oil)
Ornish	Total fat intake reduced to <10% of caloric intake; primarily plant based
Pritikin	Total carbohydrate intake 70-75% of caloric intake; total protein intake 15-20% of caloric intake; total fat intake 5-10% of caloric intake; fibre intake 40-45 g/1000 kilocalories
Minimal intervention	Usual diet or no advice, referral to own physician, usual care, non-dietary programming, or minimal dietary advice