The truth about KALE

Its green leaves are all the rage, flying off supermarket shelves and into the hands of the health-conscious like there's no tomorrow.
Gwyneth Paltrow advocates whizzing its bitter leaves into a morning smoothie, while Jennifer Aniston says pairing it with lean meat got her in 'stripper shape' for a film role. In fact, as demand for kale has soared in recent years, farmers have warned of a worldwide shortage. 

The dark-green plant, which is a member of the cabbage family, has curled leaves and a bitter taste. Its advocates call it a ‘superfood’ due to its high levels of vitamins, and fibre and protein content.
And with only 50 calories per 100g, and zero fat, it is said to be the friend of slimmers.

However, since its popularity peaked, kale has faced a backlash, with experts warning it can cause digestive problems, kidney stones, thyroid problems and possibly even a heart attack. Below, we asked dietitians and nutritionists whether kale really does deserve its superfood status and whether concerns voiced by critics are worth listening to..

Source  - Daily Mail