Researchers believe those who eat four or more portions
weekly are 76% more likely to experience worsening asthma symptoms. Servings of
four or more a week - considered to be a high dietary intake seems to have
the greatest impact on symptoms, the findings published online in the journal
Thorax suggested.
Such meat is rich in nitrites, which may have a role in
airway inflammation - a typical feature of asthma, the report said.Researchers looked at a study of 971 adults picked from data
tracking 2,000 asthma patients, close relatives and a comparison group from
five cities in France for more than 20 years.Looking at specific data between 2011 and 2013, the
researchers measured dietary intake through frequent questionnaires taking in
118 items in 46 food groups and graded cured meat weekly intake from low - one
or less - to high - four or more.
Asthma symptoms, such as difficulty breathing, chest
tightness and shortness of breath, in the preceding 12 months were scored from
zero to five.
Other information such as smoking, regular physical
activity, age, sex and educational attainment was also taken into account.
Between 2003 and 2007, 42% of the participants said they had
asthma at some point and around half (51%) had never smoked.Among those who ate one or fewer weekly servings, the
proportion of those with worsening asthma symptoms was 14% while among those
eating one to four the proportion was 20% and among those eating four or more,
the proportion was 22%.
After potentially influential factors were taken into
account, the researchers believed that those who ate the most cured meats were
76% more likely to experience worsening asthma symptoms than those who ate the
least.The study was observational so no firm conclusions could be
drawn.The researchers said the symptom score may have been
affected by smoking or COPD - chronic lung disease that shares many of its
symptoms with asthma.Nitrites are also believed to be, under certain conditions,
carcinogenic to humans.
No comments:
Post a Comment
Leave Comment Here