What's the Buzz...

What's the Buzz...

Fruit smoothies are not a healthy choice

Fruit smoothies and frappes can contain more kilojoules than a full meal, a study has revealed. Consumer group Choice analysed 95 drinks sold at a variety of popular chains including Boost Juice, Donut King, Wendys and Gloria Jean’s, finding 81 were high in sugar - at least 7.5g per 100ml, News.com.au reported.

Thirteen of the drinks were more than 1900 kilojoules, or 454 calories - about three times the amount dieticians recommend for a snack.

Five were high in saturated fat, with each drink containing more than 11g of saturated fat per serve, most likely because they were made with ice-cream.
Although fruit smoothies have a healthy image, Choice spokeswoman Ingrid Just said some were packed with “hidden sugars”, containing fruit juice concentrates and high-fructose syrup.

“It’s always preferable to have the whole fruit,” Just said. “With the whole fruit, you get the fibre, you get the added nutrients from the skin and the fibre in the fruit, plus you’re not consuming as many kilojoules as quickly.

Birds sing at higher pitch in noisy cities

The real reason why birds sing at a higher pitch to differentiate it from the low-frequency sound of traffic is to make themselves better heard in the city noise by increasing the volume of their song that by raising its frequency, researchers say.
Animals have developed a variety of strategies for dealing with increasing noise pollution in their habitats. It is known, for example, that many urban birds sing at a high pitch to differentiate their song from the low-frequency sound of road traffic.

Despite the numerous unfavourable environmental conditions they encounter there, many wild animals have colonised cities as a new habitat. In cities they must deal with greater numbers of humans and with more light and noise pollution than they encounter in rural settings. However, the urban habitat also offers certain advantages, for example a more abundant supply of food and new breeding options.
Many animals have thus adapted surprisingly well to city life.

Junk food could increase asthma risk in kids

Consuming junk food thrice a week may lead to asthma and eczema in kids, a study has revealed. Scientists worry that the high saturated fat levels lower children’s immune systems.

A research involving more than 50 countries found that teenagers, who ate junk food like burgers three times a week or more, were 39 per cent more likely to get severe asthma and younger kids were 27 per cent more at risk, the Sun reported.
Both were also more prone to suffer from the eye condition rhinoconjunctivitis.
The authors wrote that fast food may be contributing to increasing asthma, rhinoconjunctivitis and eczema.

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