Consistency in herbal supplements is not guaranteed because _____.
a. no manufacturers have attempted to standardize them
b. they are natural substances, so there can be no consistency
c. different growing conditions can affect the plants' chemical composition
d. the active ingredient in an herb must be isolated to be effective
e. the active ingredient is usually not identified
Question 2
Match the short phrase or term with the associated short phrase or term. Choose the best answer. You may use some answers more than once or not at all.
A) Whole grains
B) Beans and peas
C) Empty-Calorie foods
D) Nonfat milk products
E) OilsMyPlate foods that provide high-quality protein:
Comparison of Dietary Supplements
Liquid Formulations of Herbal Products
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Foods, Fortified Foods, and Supplements