Research
published in the journal Nutrition and Metabolic Insights found that
regular consumption of mango by obese adults may lower blood sugar levels and
does not negatively impact body weight. These are important findings
considering that approximately 34 percent of U.S. adults have been classified
as obese and given the health concerns related to obesity, such as type 2
diabetes (T2DM) and metabolic syndrome.
"We are
excited about these promising findings for mangos, which contain many bioactive
compounds, including mangiferin, an antioxidant that may contribute to the
beneficial effects of mango on blood glucose. In addition, mangos contain
fiber, which can help lower glucose absorption into the blood stream,"
said Edralin Lucas, Ph.D., associate professor of nutritional sciences at
Oklahoma State University, College of Human Sciences and lead study author.
"Our results indicate that daily consumption of 10 grams of freeze-dried
mango, which is equivalent to about one-half of a fresh mango (about 100
grams), may help lower blood sugar in obese individuals."
This pilot study
was designed to investigate the effects of mango consumption on anthropometric
measurements, biochemical parameters, and body composition in obese adults.
Participants completing the 12-week study included 20 adults (11 males and 9
females) ages 20 to 50 years old with a Body Mass Index (BMI) of 30 to 45
kg/m2. The study subjects were asked to maintain their usual diet, exercise
habits, and regimen of regularly prescribed medications.
Each day during
the study period, participants consumed 10 grams of freeze-dried mango, and
dietary intake was monitored via 3-day food records assessed at baseline and
after 6- and 12- weeks of mango supplementation. Anthropometric measurements
(height, weight, and circumference of waist and hip) were measured at baseline
and after 6- and 12- weeks of mango supplementation. Body composition and blood
analyses of fasting blood triglyceride, HDL-cholesterol, glucose, hemoglobin
A1c, and plasma insulin concentration were evaluated at baseline and at the end
of 12 weeks of mango supplementation.
The researchers
found that after 12 weeks, participants had reduced blood glucose (-4.41 mg/dL,
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.
"We believe
this research suggests that mangos may give obese individuals a dietary option
in helping them maintain or lower their blood sugar. However, the precise
component and mechanism has yet to be found and further clinical trials are
necessary, particularly in those that have problems with sugar control, such as
diabetics, are necessary," said Lucas.
Results from
this present study could have been influenced by a number of factors including
the small sample size, lack of a control group, duration of mango
supplementation, inaccurate self-reporting of dietary intake and physical
activity level by study subjects, or from lack of compliance with daily mango
supplementation as part of the study protocol. Additional human studies with
larger sample sizes and of longer duration of mango supplementation should be
conducted.
A nutrient rich
fruit, mangos contain over 20 different vitamins and minerals, supporting
optimal function of processes throughout the body. Mangos are an excellent
source of the antioxidant vitamins C and A as well as folate. They are also a
good source of fiber, copper, and vitamin B6.
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