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Now Foods, A&D is a supplement containing vitamin A in the form of retinyl palmitate and natural vitamin D3 in the form of cholecalciferol extracted from lanoline. The ingredients contained in the preparation support the process of bone mineralization, positively influence the process of seeing and also play an important role in the proper functioning of the immune and nervous systems.
Common vitamin D deficits prove that its supply with diet and exposure to sun are not sufficient, therefore the preparation is recommended especially to people, whose diet is not rich in food being a good source of vitamin D and those who avoid sunlight. Moreover, the preparation is recommended to elderly people, among whom lower ability to synthesize vitamin D in skin is observed. The supplement is also addressed to people who want to take care of correct vision and improve the condition of skin, hair and nails.
Vitamin A is a common name for the group of chemical compounds which have a multidirectional effect on the organism, including: retinol, retinal, retinoic acid and also their further derivatives. The vitamin is soluble in fats and stored mainly in fatty tissue and liver.
The role of vitamin A
Vitamin A demonstrates strong antioxidant, anti-inflammatory and anticancer effects and also positively influences the condition of skin – stimulates the synthesis of melanin and collagen fibers, facilitates its regeneration and improves protective barrier as well as the condition of hair and nails. Moreover, it takes part in building visual purple – rhodopsin, thanks to which its proper level is important in the process of vision. Vitamin A is additionally responsible for the functioning of the immune system and influences the growth and development of the organism.
The symptoms of vitamin A deficits
Vitamin A deficit is manifested by: worse vision, increased susceptibility to infections, weakening of hair and nails structure, appetite loss and also increased desquamation and keratinizing of epithelium (hyperkeratosis) and dry skin.
Vitamin A – for whom?
The growth of the need for vitamin A is observed among others in the cases of long-lasting and frequent stress, remittent infections and also disorders in the functioning of the digestive tract. Moreover, low level of vitamin A appears in the case of applying low-fat diets. People who spend a lot of time in front of the computer’s screen and those who observe deterioration of vision should also take care of the proper supply of this vitamin. Vitamin A is also useful in dermatological disorders and in the situation of impaired wound healing.
Vitamin D is a compound soluble in fats. Vitamin D may be provided to the organism with diet (oily fish, fish oils, eggs, liver), as well as it may be synthesized in skin under the influence of sunlight.
The role of vitamin D
Vitamin D takes active part in regulating calcium-phosphorus balance, thanks to which it plays a key role in the process of bone mineralization and positively influences our nervous system. Moreover, this vitamin protects against harmful mutations, which may be the cause of cancer – vitamin D lowers the risk of the development of 17 cancers, including lung, prostate, breast and anal cancers. Another advantage of vitamin D is the fact that it strengthens the defense systems of the organism, has antibacterial effect and has neuroprotective properties, thanks to which it may mitigate the symptoms of the diseases of neurodegenerative origin.
The consequences of vitamin D deficits
Lowe level of vitamin D may result in the increased risk of the occurrence of chronic diseases (diabetes, circulatory diseases) and also cancers and autoimmunological diseases. Vitamin D deficits contribute to, among others, the development of rickets, osteomalacia and osteoporosis.
The factors influencing the needs for vitamin D
Vitamin D deficit is strongly connected with old age, insufficient supply with a diet and insufficient exposure to sunlight. Moreover, the risk of deficits is increased in obese people and also those, who suffer from genetic diseases as well as kidney and liver disorders. The increase of the needs for vitamin D is also observed in pregnant and breastfeeding women.
Summing up, Now Foods, A&D is a dietary supplement addressed to every person, whose diet is not rich in natural sources of vitamins A and D and also is poor in fats, which negatively affects assimilability of these vitamins.
Vitamin D supplementation is also important, because in our latitude, there is a low sunlight strength, which considerably limits its synthesis, especially in the fall-winter period. The preparation successfully supplements the deficits of vitamins A and D, therefore it should be a daily additive to your diet.
In the case of suspected vitamin A deficiency, it is recommended to take it in a daily dose of 10,000 IU (one capsule) for no longer than 2 months. This dose effectively makes up the deficiency and, among others, improves the eyesight and has a beneficial effect on the condition of the skin. The formula contains also vitamin D. The vitamins in the supplement act synergistically and supports the overall body function.
Both vitamin A and vitamin D are fat-soluble compounds. It is thus recommended to take them with a fat-containing meal.
Now Foods is a company with years of experience in the industry that offers a wide range of nutrients and dietary supplements. Brand is known for its high-quality products designed for hair and nails and supplements supporting the immune system. The offer includes the antioxidant supplements, antibacterial supplements, reducing appetite supplements, products supporting the reduction of body fat and improving digestion. All products are made from natural ingredients.
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Organic Extra Virgin Olive Oil and Softgel Capsule (gelatin, glycerin, water).
Vitamin A (retinol) is present in foods of animal origin (fish of the sea, fish, eels, liver, pork and beef, eggs, butter). In the plant products it is present as provitamin A (b-carotene), a powerful antioxidant. The food products containing pro-vitamin A are fruits in yellow and red, including apricots, tomatoes. Necessary in process of building and assimilation of proteins, affects the normal growth of bones and helps the treatment of eye diseases.Iinhibits the excessive action of the thyroid hormone - thyroxine, which simultaneously prevents the deposition of excess vitamin A. Necessary in the sports diet of in the form of food, such as dietary supplements and nutritional supplements.
Vitamin A deficiency causes growth inhibition, flaking and dryness of the skin, impaired night vision (i.e. Night blindness).
Excess of vitamin A leads to calcification of the bones and some soft tissues, and abnormalities in the functioning of glomerulonephritis
Dosage: Specified in IU and it is 5000 IU per day.
Retinyl palmitate - ester of vitamin A, especially valued in cosmetology. It is considered the gentlest form of this vitamin, therefore it is recommended to people with sensitive skin. It is also characterized by good assimilability in oral application, it is de-esterified without any problems in the small intestine to retinol, a fully active biological form of vitamin A.
Retinol demonstrates a wide range of activities in the human organism. Vitamin A is especially popular due to its positive influence on epithelial cells. It is responsible for proper, nourished state of skin, hair and nails. Apart from this, proper supply of retinol is also incredibly important for the health of the skeletal system, as vitamin A is a regulator of growth of bone tissue.
Vitamin A is also essential to maintain proper functions of eyesight. Its derivative, by binding with opsin, creates rhodopsin, which is responsible for stimulating the activity of rod cells located on eye retina. Thanks to this, it is possible to maintain proper vision in the conditions of poor lighting.
Some sources also suggest immunity functions of vitamin A. It may decrease the risk of pathogen permeation in the epithelium of the respiratory system.
Vitamin D belongs to fat soluble vitamins, occurs in three forms: calciferol (vitamin D1) ergocalciferol (vitamin D2) and cholecalciferol (vitamin D3), it is formed under the action of sunlight for at least 15 minutes per day. In the absence of sunlight it should be administered in the diet in the form of fish oil (Vitamin A + D3) and fish oils. It is responsible for the absorption of calcium and phosphorus. It is the building substance of bone tissue particularly necessary during pregnancy, childhood, and for athletes. It is a component of dietary supplements and nutrients among competetive athletes. Deficiency of vitamin D causes children growth inhibition, and rickets.
For adults - deficiency causes osteomalacia.
Excess of vitamin D causes headaches, alopecia, nausea, drowsiness, blurred vision, pain in the long bones, the deposition of calcium deposits.
Dosage: 400 IU units during the day.
Cholecalciferol, or vitamin D3, is an organic chemical that belongs to the family of D vitamins. It is naturally found in fatty fish, fish oil, egg yolks, milk and dairy products. It is also synthesized in the human body. It is formed from 7-dehydrocholesterol present in the keratinocytes of the spinous and the basal layers of the epidermis, and a pre-requisite for initiating this process is the action of 290-315 nm wavelength UVB radiation on the skin.
Cholecalciferol is a biologically inactive compound. In the body, it undergoes enzymatic hydroxylation – first in the liver, with the participation of 25-hydroxylase, when calcidiol is formed and secondly in the kidneys, where under the influence of 1-α-hydroxylase, calcidiol is converted into the final active form – calcitriol.
The most important role of vitamin D3 in the body is the regulation of calcium-phosphate metabolism, which directly affects normal skeletal mineralization. In addition, it is involved in cell proliferation and differentiation, insulin secretion, as well as in some functions of the nervous, endocrine and immune systems.
Cholecalciferol is the most popular form of vitamin D used in dietary supplements. Studies show that supplementation with vitamin D in this form most effectively and rapidly raises the level of 25 (OH) D3 – a metabolite that is a marker of the level of vitamin D in the body.
Dosage: according to RDI standards for individual age groups.
Lanolin is obtained in the process of cleaning of raw sheep wool from the so-called wool fat, protecting it from getting wet and unbeneficial weather conditions.
Lanolin is commonly used for the production of ointments and creams with lubricating and softening effect, however, it also found application in the production of dietary supplements and more precisely vitamin D3.
In order to obtain vitamin D3 from lanolin, it undergoes cleaning and crystallization and then proper chemical processes, as a result of which 7-dehydrocholesterol is produced - a precursor of vitamin D3, the same which is produced in skin under the influence of UV radiation. 7-dehydrorocholesterol obtained from lanolin is then subjected to the above mentioned radiation, being transformed to vitamin D3.
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