The effects of a Nutritional Supplement
(eXfuze Seven+) on blood glucose; a
double-blind, randomized study
Gary M. Booth, Professor of Plant and Wildlife Sciences,
Brigham Young University, Provo, Utah.
Email: email@example.com, Phone: (801)422-2458 (Office), (801)
This report is an analysis of a randomized, double-blind study which was conducted to determine whether eXfuzeTM Seven+, a nutritional supplement, could lower the blood glucose levels. All volunteers (n = 883) from the Huntsman Senior World Games who were participants at St. George, UT, were to consume randomly, either the eXfuzeTM Seven+ drink, (treatment A) or a commercially obtained grape juice (treatment B; placebo). We used Bayerâ€™s CONTOURÂ® blood glucose monitoring units to measure before and after blood glucose levels. All the participants voluntarily consented to be a part of the study and their ages and genders were also noted down for further analysis. A SigmaPlot11.0 Â®statistical program was used to compare the treatment A (n = 496) and the placebo (n =387) by using t-tests which showed that treatment A had a blood glucose lowering trend as compared to the placebo (p-value = 0.024). Further analysis showed that gender did not affect the treatments (p-valuefemales = 0.120, p-valuemales= 0.063). Also, age did not affect the data (p-value = 0.2). When analyzing the treatment data of the individuals with a change which was greater than or equal to 0, the p-value was found to be less than 0.001, thus indicating that treatment A appeared to cause less spiking of the blood glucose than the placebo. By graphing these data, we saw a pattern where the treatment A data-points tended to aggregate closer to zero than the treatment B data-points. Therefore, this study strongly suggests that the eXfuzeTM Seven+ treatment causes a downward trend in the blood glucose levels as compared to the placebo.
Background: eXfuzeTM Seven+ (eXf+) is a health supplement containing various botanical fruit extracts which have purported health benefits.
Aim: To determine the effects of eXfuzeTM Seven+ on the blood glucose levels.
Materials and Methods:Treatment cups (one-ounce) which were labeled as â€˜treatment Aâ€™ (eXf+) and â€˜treatment Bâ€™ (placebo) were given to 883 participants from the 2009 Huntsman Senior World Games which were held at St. George, Utah; each participant received a cup containing one ounce of a particular drink. The pretreatment and post-treatment blood glucose levels of the volunteers were measured by using Bayerâ€™s blood glucose monitoring units. Furthermore, the ages, genders, sports, and before and after dosing-times of the participants were noted. All the participants voluntarily agreed to participate in the study as a part of the health screen which was provided by the Huntsman Senior World Games. The participants were asked to return within a 30-60 minute time interval to take a final glucose measurement. There was no attempt to control the participantsâ€™ consumption of food or drink before the treatment, but they were encouraged to avoid simple carbohydrates after drinking the treatment or placebo. A total of 296 valid data points were collected from the individuals who consumed eXfuzeTM Seven+ (treatment A), and a total of 287 valid data points were collected from those who consumed commercially the available grape juice (treatment B; placebo). SigmaPlot 11.0Â®was used to determine the t-tests and the homogeneity of the variance. Further analysis was done by using the statistics programme called SASÂ®.
Results: The p-values from both the statistical programmes showed the same levels of significance, differing only slightly due to a difference in the number of data points which were used for the analysis. An initial comparison between all the treatment A and placebo data resulted in a statistically significant difference (p=0.024). The overall mean change for treatment A was -1.77 mg% of blood glucose, whereas the mean change for treatment B was +1.88 mg% of blood glucose. Hence, treatment A, with its decreasing trend, was significantly different than the placeboâ€™s increasing trend. The analyses of gender versus treatment and age versus treatment resulted in no significant differences (p=0.9119 and p = 0.680 respectively).
Conclusions: The data clearly show that eXfuzeTM Seven+ causes a significant decreasing trend in the blood glucose levels.