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Data arising from large population studies of vitamin D status suggested that vitamin D was protective against a variety of chronic diseases, including breast cancer. This led to some health agencies recommending very high amounts of vitamin D as supplements. As time passed, more recent prospective studies and intervention trials have not supported the importance of very high vitamin D intakes; only women with very low vitamin D in the blood appear to be at greater risk for breast cancer. Which of the following statements accurately describes the research and the evidence? A. Evidence from the large population studies is highly valuable because the huge sample sizes allow scientists to draw conclusions about cause and effect. B. Prospective studies are more reliable than population studies, because the data on vitamin D intake (and sunlight exposure) are collected before breast cancer is diagnosed. C. Large vitamin D supplementation intervention trials that include a control (placebo) group provide very reliable data about the relationship between vitamin D intake and protection against breast cancer; researchers can be confident in determining cause and effect, rather than just associations. A and C are both accurate B and C are both accurate

Data arising from large population studies of vitamin D status suggested that vitamin D was protective against a variety of chronic diseases, including breast cancer. This led to some health agencies recommending very high amounts of vitamin D as supplements. As time passed, more recent prospective studies and intervention trials have not supported the importance of very high vitamin D intakes; only women with very low vitamin D in the blood appear to be at greater risk for breast cancer. Which of the following statements accurately describes the research and the evidence? A. Evidence from the large population studies is highly valuable because the huge sample sizes allow scientists to draw conclusions about cause and effect. B. Prospective studies are more reliable than population studies, because the data on vitamin D intake (and sunlight exposure) are collected before breast cancer is diagnosed. C. Large vitamin D supplementation intervention trials that include a control (placebo) group provide very reliable data about the relationship between vitamin D intake and protection against breast cancer; researchers can be confident in determining cause and effect, rather than just associations. A and C are both accurate B and C are both accurate

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Data arising from large population studies of vitamin D status suggested that vitamin D was protective against a variety of chronic diseases, including breast cancer. This led to some health agencies recommending very high amounts of vitamin D as supplements. As time passed, more recent prospective studies and intervention trials have not supported the importance of very high vitamin D intakes; only women with very low vitamin D in the blood appear to be at greater risk for breast cancer. Which of the following statements accurately describes the research and the evidence? A. Evidence from the large population studies is highly valuable because the huge sample sizes allow scientists to draw conclusions about cause and effect. B. Prospective studies are more reliable than population studies, because the data on vitamin D intake (and sunlight exposure) are collected before breast cancer is diagnosed. C. Large vitamin D supplementation intervention trials that include a control (placebo) group provide very reliable data about the relationship between vitamin D intake and protection against breast cancer; researchers can be confident in determining cause and effect, rather than just associations. A and C are both accurate B and C are both accurate
Transcribed Image Text:Data arising from large population studies of vitamin D status suggested that vitamin D was protective against a variety of chronic diseases, including breast cancer. This led to some health agencies recommending very high amounts of vitamin D as supplements. As time passed, more recent prospective studies and intervention trials have not supported the importance of very high vitamin D intakes; only women with very low vitamin D in the blood appear to be at greater risk for breast cancer. Which of the following statements accurately describes the research and the evidence? A. Evidence from the large population studies is highly valuable because the huge sample sizes allow scientists to draw conclusions about cause and effect. B. Prospective studies are more reliable than population studies, because the data on vitamin D intake (and sunlight exposure) are collected before breast cancer is diagnosed. C. Large vitamin D supplementation intervention trials that include a control (placebo) group provide very reliable data about the relationship between vitamin D intake and protection against breast cancer; researchers can be confident in determining cause and effect, rather than just associations. A and C are both accurate B and C are both accurate
Recent Canadian survey data indicated that just over 30% of males consume fruits and vegetables five or more times per day. Females do slightly better, with just over 40% of the population eating fruits and vegetables this often. True False
Transcribed Image Text:Recent Canadian survey data indicated that just over 30% of males consume fruits and vegetables five or more times per day. Females do slightly better, with just over 40% of the population eating fruits and vegetables this often. True False
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