Like everything else in your body, the brain cannot function without energy. The ability to concentrate and focus comes from a sufficient, steady supply of energy in our blood, to the brain. You can help boost this by eating a nutrition dense diet, keeping you mentally alert throughout the day. Here are 3 great foods to include in your nutrition to aid cognitive function.
Essential fatty acids (EFAs) can’t be made by the body which means they must be obtained through food. The most effective omega-3 fats occur naturally in oily fish in the form of EPA and DHA. Good plant sources include flaxseed, soya beans, pumpkin seeds, walnuts and their oils. These fats are important for healthy brain function, the heart, joints and our general well-being.
What makes oily fish so good is that they contain these active fats in a ready-made form, which means the body can use it easily. The main sources of oily fish include salmon, trout, mackerel, herring, sardines, pilchards and kippers.
Low DHA levels may be linked to an increased risk of dementia, Alzheimer’s disease and memory loss, whilst having sufficient levels of both EPA and DHA is thought to help us manage stress and make the good mood brain chemical, serotonin.
Broccoli is great source of vitamin K, which is known to enhance cognitive function and improve brainpower. Research has reported that because broccoli is high in compounds called glucosinolates, it can slow the breakdown of the neurotransmitter, acetylcholine, which we need for the central nervous system to perform properly and keep our brains and memories sharp. Low levels of acetylcholine are associated with Alzheimer’s. Other cruciferous veg rich in glucosinolates include cauliflower, kale, cabbage and Brussels sprouts (although not everyone's favourite), whilst you can obtain vitamin K from liver, hard cheeses and prunes.
Certain B vitamins – B6, B12 and folic acid – are known to reduce levels of a compound called homocysteine in the blood. Elevated levels of homocysteine are associated with increased risk of stroke, cognitive impairment and Alzheimer’s disease. A study of a group of elderly patients with mild cognitive impairment found that after two years of intervention with high doses of B6, B12 and folic acid there was significantly less brain shrinkage compared to a subset given placebo treatment.
Other B vitamins including vitamins B1, B3 and choline play an important part in regulating normal brain function. Choline, which is rich in egg yolk, is essential for the memory-boosting brain chemical, acetylcholine.
Opt for B-rich foods like eggs, chicken, fish, leafy greens and dairy. If you’re vegan, look to fortified foods, including plant milks and breakfast cereals, for vitamin B12 or consider a supplement. Other useful vegan sources of B vitamins, including B6, include nutritional yeast, avocado, soya, nuts and seeds.
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