Vitamin A

Vitamin A is a fat-soluble vitamin important for vision, immune system support, and skin health. It is naturally found in animal products and in some plants as provitamin beta-carotene.

What are the benefits of Vitamin A?

Improves vision and night sight.
Participates in cell growth and regeneration.
Acts as an antioxidant.
Helps maintain reproductive health.
Promotes healthy skin and mucous membranes, as well as healing.
May help maintain healthy hair and nails.
Strengthens the immune system and helps fight infections.

Possible symptoms of Vitamin A deficiency:

Poor vision, especially night blindness.
Dry, rough skin and mucous membranes.
Slow wound healing.
Hair loss and brittle nails.
Eyelid inflammation or redness.
Frequent infections due to a weakened immune system.
Fatigue and weakness.

Natural sources of Vitamin A

Vitamin A is most commonly found in animal-derived products such as liver, fish, eggs, and dairy products. This vitamin can also be formed in the body from provitamin beta-carotene found in plants, which is abundant in carrots, sweet potatoes, spinach, and other dark green and orange vegetables. Vitamin A is also often consumed in supplement form – capsules, tablets, or liquid drops.

Recommended daily allowance of Vitamin A

The recommended daily allowance of Vitamin A for adults is about 700-900 micrograms (µg) of retinol equivalents, depending on gender and age. Doses are lower for children and adolescents, while pregnant and breastfeeding women are recommended slightly higher allowances. The exact dose should be determined individually, taking into account the person's age, health condition, diet, and blood test results. It is recommended to consult a doctor or pharmacist before taking supplements.

Possible side effects of Vitamin A and interactions with medications

Vitamin A is generally well tolerated, but excessive doses can cause headaches, nausea, skin redness, or even toxic effects on the liver. This vitamin can also interact with certain medications, such as anticoagulants or retinoids, so it is important to consult a doctor when using such preparations to avoid unwanted side effects.