Which of the following statements is false?
(a) In a balanced diet, energy-giving foods, body-building foods and protective foods are present in correct proportions. (b) No single food can supply all the components required for proper nutrition. (c) Green leafy vegetables, eggs, groundnuts and liver are a good source of iodine. (d) Roughage has no nutrition value but prevents constipation and is necessary for the proper functioning of the digestive system.
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