“…The studies were undertaken across a number of health insurance settings including private health insurance (19,(28)(29)(30)(31), employer-sponsored health plans (9,32-40), veteran's affairs (21,27,41) and public health insurance (20,22). The majority of the studies (14) were conducted in the USA (9,21,27,28,(32)(33)(34)(35)(36)(37)(38)(39)(40)(41), and the remainder were from South Africa (four) (19,(29)(30)(31), UK (one) (22) and Germany (one) (20). Studies incentivizing weight loss, increased physical activity and improved diets are discussed subsequently.…”