Scientists from Monash University have found that higher levels of triglycerides (a special type of fat) may be associated with a lower risk of developing dementia. The research was published in the journal neurology.
Triglycerides are the most common type of fat in the blood. They make up 95% of dietary fat and are the main source of energy for the brain. In the new study, researchers analyzed data from more than 18,000 patients with an average age of 75 who did not have Alzheimer’s disease or another type of dementia. They were followed for an average of six years. During this time, 823 people developed dementia.
Normal triglyceride levels for adults are below 150 mg/dL. Those in the group with the lowest levels were below 62 mg/dL and were at the highest risk of developing dementia; Diagnosis was made in 6%. Dementia was detected at a rate of 3% in the group with the highest triglyceride level (107-186 mg/dL).
Overall, every doubling of triglyceride levels was associated with an 18% reduced risk of developing dementia. Additionally, higher triglyceride levels are also associated with slower decline in mental abilities with aging.
Although the study found a correlation, it does not prove that high triglyceride levels prevent dementia. More research is needed before scientists’ findings form the basis of new prevention strategies.
“Higher triglyceride levels may reflect better overall health and lifestyle choices that protect against dementia. However, triglyceride levels may be an indicator of higher risk of dementia and cognitive decline in older people.” stated the scientists.
Previous scientists to create a previously unknown sign of increased risk of dementia.