If MyPlate recommends that Joyce consume 8 ounces of grain each day, The minimum amount that should come from whole grains is 1/2.
At least half of the grains we consume should be whole grain. Whole grains are high in nutrients and include trace amounts of minerals ( magnesium, copper, zinc)
What is the minimum amount of whole grains?
To be considered a whole-grain serving, the food you consume must contain at least 16 grams of whole grain. According to the Dietary Guidelines, Americans should take at least three servings of whole-grain items each day, which amounts to 48 grams of whole grain.
Thus, we can conclude that 1/2 will come from the whole grains.
You can learn more about the minimum amount of whole grains here:
https://brainly.com/question/4179453
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