Astaxanthin Nutrition for Eye Health
As children we all were told to eat carrots to make our eyesight better. What every parent probably doesn’t know is, this vision improving effect of carrots is due to the presence of beta-carotene in this sweet, orange vegetable.
Beta carotene is a carotoid. These are anti-oxidation nutrients present in red, pink or orange foodstuff that help fight free radicals and oxidation in the body. The eye by virtue of its uses and positioning on the human body, is an organ that is exposed to extremely high amount of oxidation.
Free radicals occur naturally in nature and within the human body as a byproduct of the millions of chemical and electrical reactions that occur around and within us. Oxidants bombard the cells and cause damage that could lead to cancer and other health problems caused by weakened cells.
Among all anti-oxidants, astaxanthin a red colored carotenoid found in seafood such as shrimp, crabs, algae and lobster. However, salmon is known as the king carotoid due to its versatility.
Astaxanthin has been shown to have positive effects in: the cure and management of cancer; increase in muscular and skeletal strength; and reduction of factors that contribute to high blood pressure and heart disease. Additionally, it also improves blood flow, cell metabolism and enhanced efficiency in oxygen utilization.
These uses have made astaxanthin to be labeled a super antioxidant. As a carotoid, it also has positive effects in improving vision and general eye health. The human retina contains lutein and zeaxanthin naturally. The presence of these carotoids is explained by the fact that the eye is an oxygen rich environment hence it requires a large amount of antioxidants to combat free radicals so as to prevent oxidative damage.
One of the foremost uses of astaxanthin nutrition is in the treatment of dry eye. This condition makes the eyes feel stinging, burning and watery leaving your vision blurred and the eyes looking red and irritated. The causes of this condition include aging, prolonged screen use and use of contact lenses all of which can’t be avoided especially in the modern world.
Unlike lutein and zeaxanthin which are naturally occurring in the retina, astaxanthin readily crosses membranes and blood-brain barriers making it an effective all-round carotene supplement for every organ including the eyes.
Astaxanthin nutrition protects the retina from damage caused by excess light. It also protects the eyes from sunburn through its cell protection and regenerative qualities. This is the same mechanism that protects sea-algae from the sun’s rays making it a powerful nutrient for the skin as well.
Astaxanthin nutrition also helps the eye by modulating inflammation. Its cell construction abilities help reduce, bind and get rid of inflammatory molecules that occur in the eyes due to cell damage.
In addition to this, astaxanthin improves microcirculation among cells all over the body. This is important particularly for the eye as good microcirculation improves cell longevity. This in turn slows down aging related eye ailments such as cataracts.
Further to this, astaxanthin improves eye focusing abilities and reduces eye strain as a direct consequence. It has also been showing encouraging results in prevention and cure of glaucoma.
It is, as a result of the above, therefore recommended that a daily dose of astaxanthin should be taken through foods that are high in its content or through recommended supplements.
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