WHAT ARE NUTS?
Nuts are botanically a type of single-seeded fruit in which
the pericarp enclosing the seed is a hard woody shell. In common usage the term
is used loosely for any hard, oil rich kernel. Of those commonly eaten, only
hazel, filbert and chestnut are strictly nuts. Walnuts, pecans, almonds and coconuts
are really drupes. Brazil nuts, pistachios, macadamias, and cashews are really
seeds with a hard shell derived from the testa rather than the pericarp.[i]
Image courtesy: radientyounutrion.com |
According to the Spanish Food Code, nuts are those fruits the
edible part of which has in its composition less than 50% of water. The
products of certain trees are called nuts (tree nuts): almonds, hazelnuts,
macadamia nuts, walnuts, cashew nuts, pine nuts and pistachios. In this group
are also included peanuts and sunflower seeds.[ii]
WHY NUTS ARE SUGGESTED FOR CVDs PATIENTS?
On the basis of Epidemiological evidences, Nutritional, in
-vitro studies and clinical trials nuts are considered as cardioprotectant
functional food.
EPIDEMIOLOGICAL EVIDENCES
Some of the epidemiological studies are:
·
The
Adventis health study
·
The
Iowa women’s health study
·
The
Nurses’ health study
·
All
cause mortality and nut consumption
·
Secondary
CHD prevention[iii]
The
epidemiologic studies have reported various endpoints, including fatal CHD,
total CHD death, total CHD, and nonfatal myocardial infarct. In
conclusion, the results of all the epidemiological studies confirm the
cardiovascular protection of nuts. This protection is extended both to men and
women of different races and ages, including postmenopausal. In addition, the
protection, also, has been described in individuals with normal and with high
blood pressure. At the same time, the consumption of nuts is associated with a
low mortality rate and an increase in life expectancy without total cardiovascular
disease total, which means living for a longer time free of this type of
illnesses.
CARDIOPROTECTIVE NUTRIENTS AND DIETARY FACTORS IN NUTS
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REFERENCES
[i]
http://www.reference.md/files/D009/mD009754.html
(Accessed on April, 4th 2013)
[ii] Dr. Rosa SOLĂ€ ALBERICH, Effects of Nuts on cholesterol and cardiovascular diseases.
[iii]
Hand book of Nutraceuticals and Functional food; pg 484-497.
[iv] 2012 Nutrient Composition of Tree Nuts, www.nutsforlife.com.au
(Accessed on March, 28th 2013)