Vitamin A supplements: what are they for? Effectiveness and contraindications in cycling

Vitamin A supplements: what are they for? Effectiveness and contraindications in cycling, vitamin A importance, vitamin A deficiency, vitamin A supplementation, vitamin A dangers, vitamin A side effects

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Vitamin A is an essential fat-soluble vitamin involved in many biological functions.

The most important are:

Vision: Vitamin A is essential for vision. It helps maintain retinal health and promotes the ability to see in low light conditions.

Immune System: Plays a critical role in supporting the immune system, helping to prevent infections and diseases.

Skin and Mucous Membranes: Helps maintain healthy skin and protect mucous membranes, providing a barrier against infections.

Growth and Development: It is important for cell growth and proper tissue development, especially in children.

Importance of Vitamin A: Vitamin A is essential for optimal health. In addition to vision, it plays a crucial role in supporting the immune system, promoting cell growth and keeping the skin and mucous membranes healthy.

Vitamin A Deficiency: A vitamin A deficiency can lead to vision problems (including night blindness), weakened immune system, dry skin, and can affect growth and development in children.

Vitamin A Supplementation: Vitamin A supplements can be taken if a deficiency is suspected, but should be taken under the supervision of a health professional.

Dangers of Vitamin A: Excessive intake of vitamin A can lead to intoxication, with symptoms such as nausea, dizziness and liver damage.

Side Effects of Vitamin A: Side effects of taking too much vitamin A include nausea, dizziness, fatigue, vision problems and, in severe cases, liver damage.

The main contraindications are:

Overdose: Excessive intake of vitamin A can lead to symptoms of toxicity, which include nausea, dizziness, fatigue, and in severe cases, liver damage.

Pregnancy: Excessive doses of vitamin A during pregnancy can be harmful to the fetus. Pregnant women should follow the recommended doses.

Drug Interactions: Some drugs can interfere with the absorption of vitamin A, while others can increase the risk of toxicity.

Liver Disease: People with liver disease should be cautious when taking high doses of vitamin A, as the liver is involved in the metabolism of this vitamin.

Smokers: Cigarette smoking can decrease vitamin A levels in the body, so smokers may require slightly more of this vitamin.

It is important to note that taking vitamin A supplements should be done under the supervision of a doctor, especially if you are pregnant, breastfeeding or have pre-existing health conditions.

We remind you that the information contained herein is for informational purposes only, always contact your doctor before taking the product.