Alzheimer’s is a neurodegenerative disease that affects around 1.2 million people in France. Rare before the age of 65, it is characterized among other things by memory loss, disorders of executive functions and orientation in time and space and a loss of autonomy over time. And if there is still no treatment to deal with this slow neuronal degeneration, it would seem that certain factors influence the risks of developing this pathology. This is the case for genetics, physical inactivity, poorly treated cardiovascular diseases (hypertension, cholesterol, diabetes, hyperlipidemia, etc.) or even head trauma. However, diet is also believed to be closely linked to the development of disabling cognitive disorders and dementia. Here are the foods to limit, or even ban, to avoid the risk of Alzheimer’s.
Alzheimer’s: what foods to avoid?
Use more than three drinks a day can cause brain damage. This therefore induces an increased risk of suffering from Alzheimer’s. Also, whether it’s wine, beer, or stronger spirits, the risks are the same. Indeed, we find ethanol with the effect vasodilator in alcoholic beverages. In doing so, it disrupts blood flow to the brain and can damage the nervous system.
2) Tap water: not recommended
While good hydration is key to being in good health, it is important to avoid hydrating too often with tap water. This is explained by the PAQUID study of 2000 which had shown that the risk of contracting Alzheimer’s disease is 1.99 times higher in regions where tap water contains more than 0.1 mg / liter. This is because the aluminum sulfate used to make water more transparent is a proven neurotoxicant. By attaching to brain tissue, it destroys the nervous system and accelerates the aging of the brain. It should therefore be avoided to abuse it to limit the risk of developing neurological disorders.
Posted in Neurology in 2019, work by Japanese researchers reported that there was a link between trans fatty acids and dementia. However, as in margarine, processed foods or meat (also present in this list of foods related to Alzheimer’s), frying also contains high doses. A high consumption of nuggets, donuts or fries therefore increases the risk of suffering from dementia. Indeed, trans fatty acids would cause harmful inflammation and promote the formation of amyloid protein.
According to the scientists in charge of the study, patients with high blood levels of trans fats had 50 to 75% more risk to develop a neurodegenerative disease such as Alzheimer’s.
4) red meat
Although the iron in meat is essential for good health, it can increase oxidative stress in the body and be harmful in too much quantity, hence the link between red meat and Alzheimer’s disease. By promoting the formation of free radicals, it can damage tissues, and in particular the fragile brain tissues. Several associations which fight against this disease therefore often advise to favor the consumption of white and lean meats as well as fish more regularly for this reason. So avoid excess!
5) processed dishes and sweets
Ready meals, junk food, pastry, cold cuts, sausages, etc. Rich in salt, but also in fats (and in particular in trans fatty acids), industrial dishes of all kinds are often very harmful to the brain. As for the sweets, cakes and other chocolate bars that satisfy our small snacks, they are not healthier! The Alzheimer Foundation recommends drinking water rather than soda, and to prefer nuts and almonds to delicacies devoured between meals.
As mentioned earlier, margarine contains a high content of trans fatty acid. In addition, according to a study published in Chemical Research in Toxicology in 2012, its diacetyl (the aroma that gives it a good taste of butter in margarine or popcorn) is associated with an increased risk of dementia in case of strong exposure.
Cheese and dairy products: a controversial link between these foods and Alzheimer’s
Associations such as the Vaincre Alzheimer Foundation often advise consume dairy products in moderation. Products made from goat’s or sheep’s milk should also be preferred, preferably consumed in the morning and do not exceed 30 g per day.
However, the link between Alzheimer’s disease and milk-based products remains very controversial to this day. For example, a 2002 study concluded that too high homocysteine (an amino acid very common in cheese) correlated with an increased risk of developing Alzheimer’s disease. However, this work is now highly criticized. Another study published in 2020 published in the Journal of Alzheimer’s Disease For her part, she believed that cheese made it possible to counteract cognitive decline. In the absence of conclusive and unilateral data, caution is therefore in order.