4. What\'s wrong with the following hypothesis? How can it be improved? (Remembe

Question

4. What's wrong with the following hypothesis? How can it be improved? (Remember that I am not asking if the hypothesis is true or not true.a research study would have to be Multivitamin mineral supplements improve health 5. What is wrong with each of these study designs, given the hypothesis? (In other words, why is this study design inappropriate for testing the stated hypothesis) Hypothesis: Fruits and Vegetables reduce the risk of heart disease Study Design: 45,000 adults will be interviewed about their diet and then followed fot 10 years. At the end of that time, the number of coronary events will be assessed and statistical analysis will be used to determine if those who ate more fruits and vegetables were less likely to have heart disease 6. What is wrong with each of these study desigas, given the hypothesis? (In other words why is this study design inappropriate for testing the stated hypothesis)

Explanation / Answer

4. Maintenance of health due to nutrients inadequacy is doubtful but taking too much vitamins for longer times may be harmful for you because as we know that vitamins are needed in very small amount. They can not be stored in the body but some fat soluble vitamins like vitamin A can be stored in liver and this stored vitamin can damage the liver. So a Mega dose of some fat soluble vitamins can accumulate and reach upto the toxic level and cause liver damage. Particular care is needed when we take multivitamin mineral supplements. So this hypothesis can be improved by indicating the name of particular vitamins and minerals or by avoiding those vitamins that can cause harmful side effects after accumulation. Two recently published studies suggest that multivitamin and minerals supplement can do more harm then good. One study suggests that excess dose of Vitamin E causes prostate cancer.

5. This study design is inappropriate for testing the stated hypothesis because -

1. Amount of fruits and vegetables are not included.

2. How to take vegetables means how to cook is also not recommended to the people.

3. Increased consumption of fruits and vegetables should be at the expense of reducing other food and drinks such as suger - sweetened beverages, red and processed meats, saturated and trans fat, sweets and chocolates, sugar rich deserts etc.

4. Dietary patterns should also be included in the study designs.

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