article_snippet.sent: There were three very-low-calorie meal replacement programmes: HMR, Medifast and OPTIFAST.
article_snippet.sent: Of the 11 plans, some were free while those that required replacement meals could cost up to between £380 ($570) and £460 ($682) per month.
article_snippet.sent: A prepaid meal plan with 28 days of meals delivered to the dieter’s door, which can be supplemented with fresh fruit and vegetables. 
article_snippet.sent: A meal replacement system, including shakes and microwave meals, supplemented with fresh fruit and vegetables.
article_snippet.sent: Involves substituting two daily meals with an energy-restricted replacement.
article_snippet.sent: Medifast: Consists of pre-planned meals which create a calorie-deficit to aid weight loss.
article_snippet.sent: Optifast: Meal replacement plan including shakes, soups, bars, protein drinks and vitamin, mineral and fibre supplements.