united states department of agriculture center for nutrition policy and promotion home economics research report number 56 november 2004 nutrient content the us food supply 1909 2000 abstract this presents historical data on trends presented in are invaluable monitoring potential to meet nutritional needs examining relationships between supplies diet health dietary americans additionally estimates reflect federal enrichment fortification standards technological advances industry contribute guidance system as such these interest agricultural policymakers economists researchers public educators provided energy yielding nutrients protein carbohydrate fat total saturated monounsaturated polyunsaturated 19 individual fatty acids cholesterol fiber 10 vitamins 9 minerals new vitamin a reported retinol activity equivalents m rae folate dfe included quantities per capita day years through