What is PUFA (polyunsaturated fatty acids)?
Fatty acids provide necessary calories to human body, as well as making
food more savory, increase appetite, palatability and sense of satiety. It also
facilitates lipophilic nutrient such as vitamin A, D, and K absorbed into our
body. Fatty acid can be categorized into saturated or unsaturated fatty acid by
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 respective function.
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 respective function.
Omega-3 fatty acids also can
1. Reduce inflammation and may
help lower
risk of chronic diseases, such as heart disease, arthritis and cancer.
2. Inhibit breast
and colon cancer can be modified or their growth.
3. Protect against neurodegeneration and
possibly reduce the chance of developing cognitive impairment.
The lack of Omega-3
1. limit infants' development potential
Infants who do not get enough omega-3 fatty acids during pregnancy are
at risk for developing vision, brain and nerve problems
2. Symptoms of omega-3 fatty acid deficiency include fatigue, poor memory,
dry skin, heart problems, mood swings or depression, and poor circulation.
Omega-6 fatty acids can
1. regulate metabolism, stimulate hair
growth and keep the reproductive system healthy.
2. help reduce the painfully inflamed
joints of rheumatoid arthritis.
The lack of Omega-6
1. may cause eczema or dry, irritated
skin, water loss, hair loss, drying eyes, arthritis and high cholesterol.
2. More serious complications can lead to heart arrhythmias,
infection and the inability to heal, kidney damage, sterility, growth problems,
behavior problems and miscarriage.
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.
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