Most doctors recommend a diet based 1 the five main food groups. However, recently there has been a rise ____ the number of vegetarians in the UK. The reasons for their choice depend ____ a number of factors. 'Classic' vegetarians feel empathy ____ the animals that are killed. ’Green eaters' are concerned ____ the impact of eating meat on the environment. And, there are people who feel that they are better6 without meat for health reasons.

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