The brain, composed of approximately 60% fat, relies on these lipids for cellular structure and nerve signal transmission, according to Eating Well. However, concerns about obesity or weight loss often lead individuals to drastically reduce dietary fat, potentially compromising brain health.

Reduced concentration

Fats are crucial for optimal brain activity. Fatty acids, integral to nerve cell membranes, facilitate signal transmission between cells. A diet deficient in fat can disrupt this process, consequently impairing concentration and decision-making.

Avocado contains fats beneficial for the brain. *Photo: Anh Chi*

Impact on memory

Insufficient fat intake can specifically impact memory, particularly the recall of recent events and activities. Healthy fats supply essential fatty acids vital for brain function.

Verywell Health indicates that a long-term deficiency of essential fats can impair the activity of nerve cells in the hippocampus, a brain region critical for memory. This impairment can lead to a decline in cognitive function over time.

Negative mood changes

Vitamin D, a fat-soluble vitamin, requires dietary fats for absorption. Fats in meals aid its dissolution and passage through the intestinal lining into the bloodstream. A low-fat diet can hinder the absorption of these fat-soluble vitamins, increasing the risk of vitamin D deficiency.

Both fats and essential fatty acids are indispensable for brain function, while vitamin D plays a role in numerous neural processes. Ensuring adequate intake of healthy fats provides vital nutrients for brain health and overall well-being.

Increased dementia risk

Beneficial fats, such as omega-3, help lower triglycerides and support cardiovascular health. Maintaining a healthy heart and blood vessels is paramount for brain function and is associated with a reduced risk of age-related cognitive decline.

WebMD recommends prioritizing healthy fats from sources like salmon, sardines, and mackerel, which are rich in omega-3 EPA and DHA, to support cell membrane structure and brain activity. Seaweed offers omega-3s and micronutrients like iodine, crucial for thyroid function. Extra virgin olive oil is packed with monounsaturated fats and antioxidant compounds. Walnuts provide plant-based omega-3 ALA.

Individuals should limit trans fats and saturated fats found in common sources such as fried foods, animal fats, packaged cookies, and processed meats.

Anh Chi (Compiled)