Ai a acrilamida (potencialmente cancerígena) e o McDonald's

http://www.counselheal.com/articles/31468/20170126/mcdonalds-taking-steps-reduce-cancer-causing-chemicals-food.htm
Citando:
"McDonald's reported to have been taking measures in the reduction of acrylamide in its food. For the past decade they have changed the variety and type of potatoes they use that have less starch. They have introduced new storage methods and processing conditions to limit the risk of acrylamide formation. 
Acrylamide is formed when sugars and proteins in starchy foods are roasted, fried, baked or toasted. It causes a chemical reaction at high temperatures around 120 degrees Celsius and above."
(...)
"FSA experts have also advised not to store potatoes in the fridge, this is a process called cold sweetening because cold temperatures can increase formation of acrylamide. The longer the potatoes are kept in the fridge the greater the risks.
Some critics argued that the acrylamide health effects on humans are extremely weak. Animal studies have linked acrylamide health risks but there are no current studies that have strong evidence any link of these risks to humans."

Ai a acrilamida (cancerígena) outra vez!

É um assunto recorrente, que vai voltando. Há uma campanha (Go for Gold - FSA) para ajudar as pessoas a minimizarem a exposição ajustando a forma de preparação dos alimentos. E há especialistas que relembram que os estudos mais aprofundados foram feitos em ratos (e que as quantidades a que somos expostos numa torrada queimada ou batatas assadas no forno são pequenas):
https://www.theguardian.com/science/2017/jan/23/ancer-risk-roast-potatoes-toast-acrylamide
http://www.telegraph.co.uk/opinion/2017/01/23/hands-roast-potatoes/




Citando (elsewhere):
"Today, the Food Standards Agency (FSA) launched a campaign called ‘Go for Gold’, urging people to understand how to minimise exposure to acrylamide when cooking at home.
It outlines that Acrylamide is a chemical created when foods, such as potatoes and bread, cooked for long periods at high temperatures when baking, frying, grilling, toasting and roasting, and has the potential to cause cancer in humans.
The campaign urges people to minimise levels of the potentially harmful chemical in home cooking. "
(...)
"Exposures 170mg per each kg of body weight are believed to be the point of an increased risk of cancer.
But dietary surveys revealed exactly how much acrylamide adults are exposed to on a daily basis.
For most people, the consumption of the toxic compound if less than 0.6mg, but many have as much as 1.1mg.
He said: “Adults with the highest consumption of acrylamide could consume 160 times as much and still only be at a level that toxicologists think unlikely to cause increased tumours"