Question

Dieting is common in our society and everyone wants a piece of the action. So many diets are available to choose from if someone wants to change their health; e.g., lose weight. Often times, diets are promoted with claims of great success.

Choose a particular diet and analyze it in terms of scientific evidence, or lack thereof. Then, design a controlled experiment to test a hypothesis based on this diet. The experiment must include multiple individuals within a control and experimental group. Specify how you will measure the outcome of the experiment identifying both the independent and dependent variables. Describe the potential outcomes of the experiment in terms of supporting the hypothesis.

Answer 1

Diet is the sum of food consumed by a person or other organism.
Acomplete nutrition require s ingestion and absorption of vitamin s, minerals, essential amino acids from protein and essential fatty acids from fat containing food, also food energy in the form of carbohydrates , protein and fat .
Dietary habits play a important role in the quality of life, health and longevity.
Balance Diet is one that gives our body the nutrient s it needed to function correct rly. To get the proper nutrition from your diet you should consume the majority of your daily colores in : Fresh fruits, Fresh vegetable s, whole grains, nuts and lean proteins.
Nutrition is intake of food considered in relation to the bodies dietary needs.
The Scientific Method is a series of organized steps to which an experiment is done. The Scientific Method helps you plan, predict, research, conclude and maybe even publish your findings. The Scientific Method will make your experiment more organized, easy to interpret and learn from.
The steps to the Scientific Method are:
1) Pose a Testable Question.
2) Conduct Background Research.
3) State your Hypothesis.
4) Design Experiment.
5) Perform your Experiment.
6) Collect Data.
7) Draw Conclusions.
8) Publish Findings (optional)
A Hypothesis is usually stated using a 'if and then' statement. Your sentence will sound something like, If I drink water, then I will feel hydrated.
There are five main things to cover in the design step. Those five things are:
1) Make a list of parts, materials and tools needed for your experiment.
2) Declare your control.
3) Declare your independent variable.
4) Declare your dependent variable.
5) Describe how you will perform your experiment.
For the sample experiment we will need:
Two clear plastic cups filled with half a cup of water
1) A thermometer
2) Two sugar cubes
3) Distilled water
4) Microwave
5) A stopwatch
6) A measuring cup
7) Two microwaveable bowls
The control variable is the normal scenario.For the sample experiment, the control variable is: A cup of water that is room temperature (seventy two degrees Fahrenheit).
The independent variable is the one variable you change that makes the scenario different than normal conditions (control).
For the sample experiment, the independent variable is:
Increasing the water temperature to about ninety five degrees Fahrenheit. This is the independent variable because the control, or normal scenario is about seventy two degrees Fahrenheit.
The dependent variable is the way you will measure the results of the experiment.
For the sample experiment, the dependent variable is:
How long it takes for the sugar cube to completely "disappear" (dissolve).
Your description should be written so that if anyone were to read it, that person would be able to conduct the experiment just the way you did it.
For the sample experiment, the description should go like this:
In this experiment, I filled two cups with half a cup of distilled water. One cup was measured at approximately seventy five degrees Fahrenheit and the other cup was measured at ninety five degrees Fahrenheit. I dropped a sugar cube in the first cup and started the stopwatch exactly at the same time when the sugar cube touched the water. I repeated the process one more time with the second cup. After the sugar cube completely disappeared, I stopped the stopwatch and recorded my results. I repeated the process one more time with the second cup.
Perform the Experiment
All you have to do in this step is perform the experiment exactly as you described in the description in the last step.
Collect Data
When you finish timing the first cup, write down your results. Repeat that with the second cup.
Your data collection at this point, doesn't need to be fancy. All this step does is ensure that you know what the data is so you could make it fancy and presentable in the next step with graphs and charts.
For the sample experiment, the data was:
In the first cup (seventy five degrees Fahrenheit), the sugar cube dissolved in
In the second cup (ninety five degrees Fahrenheit), the sugar cube dissolved in twenty four minutes and thirty seconds.
Your analysis should include:
1) Charts and graphs displaying results
2) A sentence/paragraph that states if you accept or reject your hypothesis
3) A summary recapping your experiment (optional)
Charts and Graphs
For the sample experiment, I would recommend using a bar graph.
Rejecting/Accepting Hypothesis
For the sample experiment, your paragraph should go like this:
In my experiment, my hypothesis was rejected because the sugar cube dissolved into seventy five degree Fahrenheit water dissolved in less time than the ninety five degree Fahrenheit water.
Publishing Findings (optional)
If your experiment was groundbreaking, really interesting or anything along those lines, you might want to consider publishing in a science magazine or journal.