Vitamin A 1200mcg - Food supplement that provides 1200 mcg of Vitamin A indicated in case of reduced dietary intake or increased need. Vitamin A contributes to the normal function of the immune system and to the maintenance of normal skin and vision. Science understands the role of vitamin A especially in relation to its effects on the visual system. The human retina has four types of photo pigments containing vitamin A. Poor adaptation to changes in brightness and poor night vision are some of the initial symptoms of vitamin A deficiency Yamamoto Nutrition presents Vitamin A 1200mcg. Vitamin A is a food supplement that provides 1200 mcg of Vitamin A indicated in case of reduced dietary intake or increased need. Vitamin A contributes to the normal function of the immune system and to the maintenance of normal skin and vision.

Science understands the role of vitamin A especially in relation to its effects on the visual system. The human retina has four types of vitamin A-containing photopigments: rhodopsin, present in rod cells (the retinal cells responsible for night vision), and three iodopsins, present in each of the different cones responsible for daytime vision (blue, yellow and red ). The form of vitamin A found in these pigments is the 11-cis isomer of the vitamin A (retinal) aldehyde. When a photon of light strikes the rod, the 11-cis retinal separates from the rhodopsin molecule, resulting in opsin and all-trans retinol. This reaction causes a variation of the membrane potential and a consequent transmission of the visual impulse.

When there is a bright flash of light (such as car headlights), a temporary discoloration of rhodopsin occurs. It may take a few seconds before the retina regenerates and vision returns. If vitamin A levels are low, it takes longer to adjust. Poor adaptation to changes in brightness and poor night vision are some of the initial symptoms of vitamin A deficiency

How to use: take one capsule a day with water or other beverage of your choice, preferably during the main meal.

WARNINGS: Do not exceed the recommended daily dose. The supplements are not intended as a substitute for a varied diet. A varied and balanced diet and a healthy lifestyle are important. Keep out of the reach of children under three years of age. Store in a cool, dry place at room temperature.