D as in DHA

What is DHA?

Docosahexaenoic acid, or DHA, is a polyunsaturated fatty acid belonging to the Omega-3 family. It is a component of nerve cells and enables the activation of enzymes that lead to biochemical reactions allowing the synthesis of long-chain fatty acids. DHA is essential for the brain and cognitive functions, and its effects are also beneficial for the heart and vision.

Our body can synthesize it from another omega-3, Alpha-linoleic acid (ALA), but in insufficient quantities. This is why it is essential to supplement with intake through diet.

How DHA works

DHA participates in the functioning of the nervous system. It contributes to synaptic transmissions thanks to its role in the structure of biological membranes, such as neurons or nerve endings, thus preventing cerebral aging. It also promotes the development of a fetus's brain during pregnancy.

At the cardiovascular system level, DHA contributes to the regulation of cardiac function. It thins the blood, thereby limiting the risk of clot formation.

Finally, DHA contributes to the renewal of retinal photoreceptors, helping to reduce the risk of visual disorders such as age-related macular degeneration (AMD) or cataracts.

Benefits of DHA

DHA is fundamental to ensuring the proper functioning of the nervous system. It helps facilitate neuronal connections, as well as exchanges between the body and the brain. A sufficient intake of DHA helps limit the risk of developing neurodegenerative diseases such as Alzheimer's.

Furthermore, as Omega-3 DHA is a primary component of the eye, it plays an important role in the quality of vision. A sufficient intake of DHA helps reduce the risk of developing ocular pathologies.

Finally, DHA protects the cardiovascular system because its action thins the blood and has anti-inflammatory properties. A sufficient intake of DHA helps reduce the risk of cardiovascular accidents.

Sources of DHA

Several foods are sources of DHA. Fatty fish such as salmon, tuna, sardines, herring, trout, sea bass, cod liver oil, anchovies, and fish roe provide an excellent supply of DHA.

In addition, some seafood also contains omega-3 DHA, such as crab, mussels, shrimp, and scallops.