While it is true the risk of developing Alzheimer's is higher if you have certain genes it's obvious that the recent increase in Alzheimer's incidence is a result primarily from environmental, dietary and lifestyle changes.
Genes therefore raise your potential for developing this condition diet, lifestyle and environment can be changed to reduce the risk of the genetic potential developing.
Here is a pdf that discusses the issue in some detail.
Alzheimer’s Disease, Amnestic Mild Cognitive Impairment,and Age-Associated Memory Impairment: Current Understanding and Progress Toward Integrative Prevention
For several years now I've been considering how best to reduce my own personal risk for developing Alzheimer's. Becuase there is still much to be learn't it's almost impossible to summarise the POTENTIAL for prevention but because there is so little hard evidence it's also almost impossible to be certain that any particular intervention will on it's own be sufficient.
I've set out a
few lines of thought in my blogposts. and from these you should be able to work out that Limiting refined Carbohydrate intake particularly sugar and high fructose corn syrup, (soft drinks) is a priority. One of the first things that goes in Alzheimer's is the ability to handle glucose (that why so many people with diabetes go on to develop AD) so a
simple low carb diet is probably the first step to losing weight and keeping blood glucose levels under control. One way of knowing if you are developing a problem handling glucose is to beg/borrow a Blood Glucose monitor and buy a few strips. (I used Ebay to find a cheap source of test strips and a cheap matching monitor) and see how high your BG levels are before you eat and 1hr and 2hrs after eating.
What is normal Blood sugar level?
Apart from using a low carbohydrate diet to control blood sugar levels, reduce weight and improve cognitive function there are other strategies that MAY be beneficial. I'll spend a bit more time tomorrow looking at the connection between
Cognitive function and Vitamin D3
]Omega 3 and Cognitive function
and low magnesium status and Alzheimer's/diabetes
I've also linked to
another more recent review of potential interventions It's really a case of working out which are the most promising strategies and generally speaking those that are likely to leave our bodies with the natural levels of antioxidant anti inflammatory reserves our DNA evolved to live with are likely to be the most useful.
Preventing Alzheimer’s Disease and Cognitive Decline This paper sums up the evidence for saying there is not much research CONFIRMING that we CANNOT as yet make firm recommendations for preventing/reducing/delaying dementia onset.
I think there are good reasons why much of the research isn't supportive. Generally supplement research is conducted with forms/amounts of the active ingredient that are synthetic/inadequate as opposed to natural forms/amounts and studies aren't generally long enough for deficient people to actually correct deficiency state let alone repair damage. However I'll go into that in more detail later.