So, what exactly does vitamin A do? Vitamin A is fat soluble, which means that our bodies dont naturally make it or store it. Our bodies absorb vitamin A in the form of retinol, which is actually a type of alcohol.
Foods that contain vitamin A are eggs, meat, milk, cheese, certain fishes (halibut, cod), orange vegetables like sweet potatoes, carrots and pumpkin, and almost all of the leafy, dark green vegetables (spinach, broccoli, etc.)
Vitamin A is great for promoting vision, not just in the daylight, but night time vision as well. It wont give you totally cool night vision, but it will certainly help you be able to see. Vitamin A is very much a protector for our bodies.
Improving our vision helps us to see clearly and avoid running into things that could cause injury. It makes our skin strong, which forms a good barrier against bacteria, disease, infections and toxins that exist in the air and on things (like door handles, elevator buttons, bus seats, etc.) that lots of people touch.
It promotes the health of mucous membranes, which helps to clean the air we breathe before it enters our bodies, it supplements the linings of our intestines to prevent tears or breaks which can allow bacteria and infection in, and lastly, supports our immune system by acting as an antioxidant and increasing the number and effectiveness of white blood cells.
As with all vitamins, too much of a good thing can become a bad thing. A healthy diet should contain enough Vitamin A each day. If you suspect you are not getting enough, supplementing your diet with a once-daily multi vitamin will provide you your daily amount of needed vitamins and minerals without running the risk of consuming too much. The human body is great about keeping its nutrient levels stable. Once the needed amount of vitamins or minerals has been reached, the body will simply eliminate the rest.