What is PUFA (polyunsaturated fatty acids)？
Fatty acids provide necessary calories to the human body, as well as make food savory, increase appetite, palatability, and sense of satiety. It also facilitates lipophilic nutrient such as vitamin A, D, and K absorbed into our body. The fatty acid can be categorized into saturated or unsaturated fatty acid by the structure and it is advised by doctors to take unsaturated fatty acid as it provides many health benefits coping against diseases related to blood pressure, blood lipid, and blood sugar.
PUFA generally can be categorized into two categories: omega-3 and omega-6 fatty acid. The following diagram shows how PUFA synthesizes in our body and its function.
Omega-3 fatty acids can:
The lack of Omega-3
Infants who do not get enough omega-3 fatty acids during pregnancy are at risk for developing vision, brain and nerve problems
Omega-6 fatty acids can:
The lack of Omega-6
In sum, PUFA is a group of essential fatty acids to human. Microalgae such as chlorella, spirulina, and schizochitrium are wonderful sources of PUFA. Compared to fish oil and plant seed oil, microalgae is free from heavy metals and herbicide.