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Which two organs in the body hydroxylate vitamin D3, thereby turning it into its most active form?

Which of the following nutrients is associated with reducing the risk of neural tube defects in embyos? This nutrient is abundant in spinach and other leafy green vegetables. 

Vitamin A deficiency can lead to more frequent infections. 

Which form of vitamin A is abundant in carrots, spinach, cantaloupe, apricots, and broccoli?

A sedentary, 46-year-old woman who is 5 feet 4 inches tall and weighs 160 pounds would like advice about her weight and diet. Using the Hamwi equation, what is her ideal body weight?

On the Nutrition Facts Label, what is the Daily Reference Value for saturated fat?

Which of the following nutrients has been associated with reducing the risk of neural tube defects during pregnancy?

On the Nutrition Facts Label, what is the Daily Reference Value for total fat?

If a woman follows your suggested 1,800-Calorie food plan and derives 30% of the Calories from fat, how many grams of fat will she eat each day?

When a person’s glycogen stores are exhausted due to insufficient carbohydrate intake, from what does the body make or get most of the glucose needed to fuel the brain and nervous system?