Studies show that a high-protein diet is as harmful as smoking

A scientific study found that people who have animal protein in their diet have the same cancer risk as those who smoke 20 cigarettes a day. The study traced tens of thousands of adults for nearly 20 years and found that people with a high-protein diet had a four-fold higher probability of cancer than those with a low-protein diet.


Nutritional advice has historically focused on reducing fat, sugar and salt intake. The World Health Organization (WHO) recently issued a warning on excess protein, in addition to the relative reduction in the amount of sugar it is recommended to consume. The researchers defined a high-protein diet that consumes more than 20% of the daily calories of protein. They suggested that the protein intake of a middle-aged person on a daily basis should be estimated using body weight, which can consume about 0.8 grams (0.03 ounces) of protein per kilogram of body weight. This means that a person weighing 90 kg should consume no more than 70-75g (2.7-2.8 ounces) of protein per day. And 300 grams (10.5 ounces) of steak contains 77 grams (2.7 ounces) of protein.
The study also showed that a low-protein diet is very important in middle age. It can not only prevent cancer, but also reduce overall mortality.

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