fat content in their products. Access the full report at http://
clinical trial: avocado boosts
vitamin a absorption
Dietary lipids help promote the absorption of provitamin A and
its subsequent conversion to vitamin A in the body, according to
a study in The Journal of Nutrition ( http://dx.doi.org/10.3945/
jn. 113.187674, 2014). Study participants who ate a meal with
β-carotene-rich tomato sauce saw a 2.4-fold increase in the
nutrient’s absorption, with a 4.6-fold increase in conversion
to vitamin A, when the meals were consumed with lipid-rich
fresh avocado. In a separate study, participants were offered raw
carrots, a source of β- and α-carotene, and the consumption of
avocado with the meal resulted in a 6.6- and 4.8-fold increase
of absorption, respectively, and a 12.6-fold increase of conversion to vitamin A.
This clinical trial is the first study to analyze the effect of
“Low-fat” label affects
dietary lipids on both absorption of carotenoids from food
and the subsequent conversion of the provitamin into vitamin
A in humans. The study was led by The Ohio State University
(Columbus, USA) researcher Stephen Schwartz and was sup-
ported by the Hass Avocado Board, an agriculture promotion
group that receives funding from Hass avocado producers and
importers in the United States.
consumption for some
An experimental field study in the journal Appetite reveals
interesting relationships between a person’s socioeconomic
status (SES), how weight-conscious he or she is, and how
much popcorn he or she eats at the movies ( http://dx.doi.
org/10.1016/j.appet.2014.05.024, 2014). A team led by University of Greenwich (UK) researcher Rachel Crockett offered
a group of 300 participants at a London cinema a large tub of
popcorn with either a “high-fat” or “low-fat” label, or no label
People of high SES who were concerned about their weight
ate more popcorn labeled “low-fat” than their unconcerned
counterparts, but the opposite effect was observed among
people of low SES, who ate less popcorn regardless of the label.
Those who weren’t concerned about their weight ate the same
amount, regardless of the label or their SES. The results “suggest
that nutritional labeling may help people who want to lose
weight from lower socioeconomic groups to eat more [health-ful foods],” Crockett told FoodNavigator. n
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