Fats provide approximately 9 kilocalories of energy per gram, which is significantly higher than carbohydrates and proteins, which provide about 4 kilocalories per gram. Vitamins are micronutrients and do not provide significant caloric value.
The class of food having highest caloric value per unit weight is:
Asked in RPSC RAS Prelims 1996 · Topic: Vitamins and Nutrition (Fats and Lipids: Types, Essential Fatty Acids, Sources, Functions, Deficiency/Excess Disorders)
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