A 2000 kcal diet gets35% energy from carbohydrates,20% protein,20% unsaturated fat,20% saturated fat and 5% trans fat, as in the chart. Carbohydrate/protein energy densities are4 kcal/g and all fats9 kcal/g. Find total fat consumed in grams.
All fat types together contribute $20+20+5=45\%$ of total energy. Fat energy is $.45(2000)=900$ kcal. Dividing by 9 kcal/g gives **100 g, C**. Energy percentages cannot be treated directly as food mass percentages.
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