Here's how aluminium foil could be harmful

Oman's government has asked people to avoid using aluminum foil in cooking, due to its negative effects on human health.
"Avoid using aluminum foil in the process of cooking or packing food and inserting it into the oven because the excess heat of the cooking leads to the exit of the aluminum metal element from the paper to the food, and interacts with it especially if you use lemon and vinegar.” - North Al Batinah Municipality
The accumulation of the aluminum element in the body leads to serious diseases.
It can be replaced with heat resistant cooking bags or natural materials such as thick vegetable leaves.