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This is one in a series of fact sheets containing information to help you select foods that provide
adequate daily amounts of vitamins, minerals, and dietary fiber as you follow
the Dietary Guidelines
for Americans . The Guidelines are -
Click here for nutrition table for 7,248 foods.
WHY DO WE NEED ZINC?Zinc, a mineral, plays an important role in the formation of protein in the body and thus assists in wound healing, blood formation, and general growth and maintenance of all tissues. Zinc is a component of many enzymes and thus is involved in most metabolic processes.
DO WE GET ENOUGH ZINC?According to recent USDA surveys, the average intake of zinc by women 19 to 50 years of age was less than 75 percent of their RDA while that of men of the same age averaged about 95 percent of their RDA. Over one-half of women had intakes less than 70 percent of the RDA.
HOW CAN WE GET ENOUGH ZINC?Eating a variety of foods that contain zinc is the best way to get an adequate amount. Healthy individuals who eat a balanced diet rarely need supplements. Intakes of zinc tend to be low in relation to recommendations, and there aren't many foods that are really good sources; thus, it may take special care to ensure an adequate intake. The list of foods will help you select those that are good sources of zinc as you follow the Dietary Guidelines. The list of good sources was derived from the same nutritive value of foods tables used to analyze information for recent food consumption surveys of the U.S. Department of Agriculture, Human Nutrition Information Service.
HOW TO PREPARE FOODS TO RETAIN ZINCZinc is lost in cooking some foods even under the best cooking conditions. To retain zinc:
WHAT ABOUT FORTIFIED FOODS?Most fortified ready-to-eat cereals usually contain at least 10 percent of the U.S. RDA for zinc. Since cereals vary, check the label on the package for the percentage of the U.S. RDA for a specific cereal.
WHAT IS A SERVING?The serving sizes used on the list of good sources are only estimates of the amounts of food you might eat. The amount of nutrient in a serving depends on the weight of the serving. For example, the edible part of a cooked chicken leg (thigh and drumstick) weighs more than the edible part of a cooked chicken breast half. Therefore, the chicken leg appears on the list while the chicken breast half does not. The chicken breast half provides the nutrient - but just not enough to be considered a good source.
WHAT ARE GOOD SOURCES OF ZINC?
FOOD SELECTED PERCENTAGE OF
SERVING SIZE U.S. RDA (1)
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