TOMATOES
Sweet, juicy, delicious Tomatoes.
Everyone knows they are good for you,
right? Uh, yeah, sure. Does everyone know specifically why tomatoes are a
healthful food? Ummm… They have vitamin C? They’re low in calories?
They’re fat-free?
Did you know that tomatoes do not have to be a deep red color to be
an outstanding source of lycopene? Lycopene is a carotenoid pigment that
has long been associated with the deep red color of many tomatoes. A
small preliminary study on healthy men and women has shown that the
lycopene from orange- and tangerine-colored tomatoes may actually be
better absorbed than the lycopene from red tomatoes. That's because the
lycopene in deep red tomatoes is mostly trans-lycopene, and the lycopene
in orange/tangerine tomatoes is mostly tetra-cis-lycopene. In a recent
study, this tetra-cis form of lycopene turned out to be more efficiently
absorbed by the study participants. While more research is needed in
this area, we're encouraged to find that tomatoes may not have to be
deep red in order for us to get great lycopene-related benefits.
Tomatoes are widely known for their outstanding antioxidant
content, including, of course, their oftentimes-rich concentration of
lycopene. Researchers have recently found an important connection
between lycopene, its antioxidant properties, and bone health. A study
was designed in which tomato and other dietary sources of lycopene were
removed from the diets of postmenopausal women for a period of 4 weeks,
to see what effect lycopene restriction would have on bone health. At
the end of 4 weeks, women in the study started to show increased signs
of oxidative stress in their bones and unwanted changes in their bone
tissue. The study investigators concluded that removal of
lycopene-containing foods (including tomatoes) from the diet was likely
to put women at increased risk of osteoporosis. They also argued for the
importance of tomatoes and other lycopene-containing foods in the diet.
We don't always think about antioxidant protection as being important
for bone health, but it is, and tomato lycopene (and other tomato
antioxidants) may have a special role to play in this area.
- But only recently are researchers beginning to identify some of the more unusual phytonutrients in tomatoes that help provide us with these heart-protective benefits. One of these phytonutrients is a glycoside called esculeoside A; another is flavonoid called chalconaringenin; and yet another is a fatty-acid type molecule called 9-oxo-octadecadienoic acid. As our knowledge of unique tomato phytonutrients expands, we are likely to learn more about the unique role played by tomatoes in support of heart health.
- As you make your stew this week-end...keep smiling and enjoy this wonderful Gift from God.
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