Pistachios are quite an interesting
little nut! The edible portions, their
kernels, are bright green in color and encased in a hard clam-like shell that
must be broken open to get them out. Hence,
when we think of pistachios the “get crackin” commercials likely run through
our minds. Surprisingly enough,
pistachios are fairly new to the United States, being introduced in the 1970s,
and increasing in popularity ever since.
To give an idea of just how popular they are: the state of California
produces 300 million pounds of the nuts a year, with Americans consuming on
average 45,000 tons of them (Pistachio Health, 2013). Quite a surprising
statistic given how expensive they are, sometimes costing over four times the
amount of other varieties.
So why are they so popular? Well
for starters they are delicious as a snack or added into a variety of dishes,
but they also pack quite a powerful punch too!
One serving of pistachios consists of about 49 kernels containing about
160 calories. While most nuts are
promoted as a source of what we deem healthy fats, pistachios consist of 90%
mono- and polyunsaturated fats. They are
a good source of protein, dietary fiber, copper, manganese, thiamin,
phosphorous, and vitamin B6. They also
contain many antioxidants and phytonutrients making them incredibly heart
healthy (Pistachio Health, 2013).
Not only do pistachios benefit
heart health, but they can also play a part in managing weight through calorie
reduction without calorie restriction, what Dr. James Painter calls the
“Pistachio Principle”. Through studies he has found that people who
consume in-shell pistachios are forced to eat slower as they must crack each
pistachio causing them to ultimately eat less than those who ate the already
shelled nuts. Additionally, he found
that the pile of empty pistachio shells served as a visual cue reminding them
how much they have consumed further influencing them to eat less (Pistachio
Health, 2013). While his studies were
specific to eating pistachios, his concepts could certainly be applied towards
other foods and dietary habits in general.
Pistachio Health. (2013). Pistachio Health Institute. Retrieved from http://www.pistachiohealthinstitute.org/
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