According to dieticians, an average adult is supposed to consume around 0.8 grams of protein per kilogram of body weight every day. Admittedly, the majority of people consume a lot less protein than they need. Therefore, most people could benefit from adding protein supplements to their diet.
Which one of the following statements, if true, most seriously weakens the argument?
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radio_button_unchecked(A) Even 0.8 grams of protein per kilogram of body weight are not enough to ensure adequate protein intake unless various sources of protein are included in one's diet.
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radio_button_unchecked(B) Some readily available sources of protein are richer in this macronutrient than others.
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radio_button_unchecked(C) Dieticians tend to disagree on the most optimal sources of protein to consume on a daily basis.
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radio_button_unchecked(D) Many people suffer from health conditions that call for a lower daily protein intake compared with the recommended dietary allowance.
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radio_button_unchecked(E) Most protein supplements are also densely packed with important micronutrients like magnesium and zinc.