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John V shares his experience as a subject in the study.

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Our results were published in a health journal. Most of the participants continued to lose weight and their lives were changed. Coconut oil is now marketed as a health food.

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We randomized all 250 people and the results and the randomized difference in the results was 0.5 BMI points. Thus the results are statistically significant, as a 4.8 difference could not be achieved by random chance.

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At the end of the 12 week study, the average BMI for the coconut oil group was 20. The average BMI for the control was 24.8. Both groups lost weight and lowered their BMI, but the coconut group brought it down by 4.8 more points.

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We will replicate this study with 250 new subjects, to confirm the results are valid and significant. We will find a different gym and possibly study people with a BMI above 30 next time.

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With a sample size of 250, our margin of error at 6.3%. This low margin of error is good, and means that my results should be a good representation of the population.

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We matched up people by gender, height, and body composition prior to the study and randomly picked one to get the coconut oil and one to not get it. This will help us compare results when we are done.

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We are not able to blind our subjects, because they will know that they are putting coconut oil in their smoothies and because they all go to the same gym, they will talk, and know who is in which group. There is no double-blind either, because our team is small and we all know who is in which treatment group.

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Our control group is the 125 participants who will NOT have coconut oil in their smoothies. We do not have a placebo, as that is not possible for our type of experiment.

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We had the gym give us a list of 250 people. We numbered them all and uses a random number table to select 125 for the treatment group. Potential lurking variables are metabolism rates, muscle mass, height, and diet. By randomizing we can reduce the impact of these

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Our experimental units were found by the local gyms we established a relationship with. When they received new clients the last month, they asked if they wanted to be part of a free 12-week program. They verified BMI for us

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Is coconut oil an effective tool for boosting metabolism and losing weight?

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At the end of the 12 weeks, we recalculated the BMI of each individual, whom the trainer assigned to them confirmed had stuck with the workout program.

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Our explanatory variable was which treatment each unit received, with or without coconut oil.

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125 subjects were randomly assigned to drink 1 tablespoons of coconut oil per day, blended in a smoothie. The other 125 subjects were to follow the same daily smoothie recipe without coconut oil.

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We found 250 men and women who had a BMI of 25.0 to 29.9 (overweight). All were signed up for paid workout sessions at their local gym for a 12 week commitment.