It is found in cheese, eggs, butter, margarine, giblets, fish oils and vegetables. Function can increase resistance to certain diseases, important for eye function and cell membranes.
Employment and dosage in cases of colds and flu, acne, heavy menstruation, osteoarthritis, poor growth and flaky skin, take up to 4.5 mg per day. Hair loss may indicate an excess or a deficiency of vitamin A. For men, 700 mcg and 600 mcg for women is the recommended ideal dose.
Warning Pregnant or planning a pregnancy, do not take vitamin A unless under the supervision of a physician, avoid it if you suffer from headaches.
* Take supplements late in the evening, several hours after eating or taking other supplements. If you cause stomach irritation, take with meals.
* Do not exceed suggested dosage of supplements. Information on the dosage that appears on the packaging of supplements varies greatly, so make sure you read the packaging carefully, and if in doubt, consult a doctor or a physician specializing in nutrition.
* If taken in excess, water-soluble vitamins like B and C, are naturally eliminated, while fat-soluble vitamins like vitamins A, D, E and K, accumulate and cause tissue damage .
* The doses listed here are not suitable for children, unless otherwise indicated.
* Do not turn food supplements during the first 14 weeks of pregnancy, unless recommended by a doctor.
* In general, unless otherwise indicated, take a supplement for a month and, if it is beneficial. continue to take 5 days per week for another month. After this deadline stop eating and consult a doctor or a physician specializing in nutrition.