Vitamin A

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Don't Go to the Cosmetics Counter Without Me, 7th Edition Paula Begoun and Bryan Barron See book keywords and concepts

Even if this was a slam-dunk process, there's barely any vitamin a in this moisturizer. It is a decent formulation for normal to dry skin and contains some helpful plant oils and a couple of good antioxidants. © Skin Beauty Repair Concentrate for Sensitive Skin ($57for 0.5 ounce) is an emollient fluid that contains irritating lavender and marjoram oils. Talk about adding fuel to the fire! Topically applied lavender oil can cause skin cell death (Source: Cell Proliferation, June 2004, pages 221-229).

Supplement Your Prescription: What Your Doctor Doesn't Know About Nutrition Hyla Cass, M.D. See book keywords and concepts

Carotenes are carotenes powerful antioxidants, and many can be transformed into vitamin a in the body as needed. Vitamin B, (thiamine) 25 mg Essential for many biochemical Vitamin B2 (riboflavin) Vitamin B3 (niacin/niacinamide) Vitamin B5 (pantothenic acid) Vitamin B6 (pyridoxine) 25 mg 50 mg 50 mg 50 mg processes in the body such as nervous system function and cellular energy production. Controls levels of homocysteine, implicated in heart disease and Alzheimer's disease.

Stop Prediabetes Now: The Ultimate Plan to Lose Weight and Prevent Diabetes Jack Challem See book keywords and concepts

Vitamins and Minerals The Nutrition Facts box also lists the amounts of vitamin a, vitamin C, calcium, and iron per serving. These amounts are not listed in milligrams but as a percentage of the Daily Value. The Ingredients List: What's Really in the Food You Buy The Ingredients list, usually located below or next to the Nutrition Facts box, identifies exactly what is in the food, in descending order of weight. What's omitted in the Nutrition Facts box almost always turns up in the list of ingredients. As one example, a jar of Point Reyes Preserves' Pickled Asparagus (an excellent product!

Take 25,000 IU of vitamin a (not beta-carotene) daily for thirty days, then reduce the dosage to 10,000 IU daily. If, however, you are a woman of childbearing age and there is any chance that you might get pregnant, do not take more than 5,000 IU daily. To reduce your long-term risk of developing macular degeneration and cataracts, take 5 mg daily of lutein, either as lutein esters or unbound (free) lutein. For active retinal eye disease, try 15 to 30 mg daily of either lutein esters or unbound lutein.

Foods that Fight Cancer Richard Beliveau, Ph.D. and Denis Gingras, Ph.D. See book keywords and concepts

For example, two studies done on the effect of high supplemental doses of vitamin a or MOLECULAR COMPOSITION OF F MICRONUTRIENTS beta-carotene (the molecule that is converted to vitamin a in our bodies) on the risk of smokers in developing lung cancer showed that the daily absorption of this vitamin does not reduce the mortality rate due to cancer. On the contrary, these risks actually increased (28% more cancers and 17% more deaths in the subjects who received the vitamin supplement in one of these studies).

Certain carotenoids, such as beta-carotene and beta-cryptoxanthin, are precursors to vitamin a, a vitamin essential for growth, while other family members, such as lutein, zeaxanthine, and lycopene, do not exhibit any chemical activity related to vitamin a and thus have other roles to play in body chemistry. For example, lutein and zeaxanthine efficiently absorb the blue light in the spectrum and may thus protect the eyes by reducing the risk of age-related macular degeneration and cataract formation.

For example, two studies done on the effect of high supplemental doses of vitamin a or MOLECULAR COMPOSITION OF F MICRONUTRIENTS beta-carotene (the molecule that is converted to vitamin a in our bodies) on the risk of smokers in developing lung cancer showed that the daily absorption of this vitamin does not reduce the mortality rate due to cancer. On the contrary, these risks actually increased (28% more cancers and 17% more deaths in the subjects who received the vitamin supplement in one of these studies).

Supplement Your Prescription: What Your Doctor Doesn't Know About Nutrition Hyla Cass, M.D. See book keywords and concepts

Beta-carotene and alpha-carotene can be turned into vitamin a, which is important for the health of the eyes and the nervous system. Antioxidants naturally complement one another, and taking one by itself in high doses can actually increase free-radical damage. Your best bet for restoring levels of carotenes is to boost your fruit and vegetable intake—which could help get rid of your gout, too! Put as many naturally bright colors into each meal and snack as you can, and augment with concentrated green food supplements as powders or capsules. • Folic acid: 400 meg daily.

Fundamentals of Naturopathic Endocrinology Michael Friedman, ND See book keywords and concepts

Vitamin A-rich foods Increase Diets higher in vitamin a have shown an inverse relationship with insulin resistance. Salt Intake Moderate Extremes of salt intake (low or high) appear to worsen insulin resistance. Nicotine-Containing Decrease Use of nicotine-containing products associated with worsening Products of insulin resistance. Exercise Increase Exercise is critical for preventing and reversing insulin resistance. Stress Decrease Acute stress associated with insulin resistance. Chronic psychosocial stress probable association with insulin resistance. Magnesium 4.

The 150 Healthiest Foods on Earth: The Surprising, Unbiased Truth About What You Should Eat and Why Jonny Bowden, Ph.D., C.N.S. See book keywords and concepts

Ten sprigs of parsley contain 556 meg of the eye-protective carotenoids lutein and zeaxanthin, as well as 505 meg of beta-carotene, 164 meg of bone-building vitamin K, and 842 IUs of vitamin a. Oh, and if you're lucky, while you're shopping you might occasionally come across parsley root, a special variety of parsley grown for its root. It looks like a baby parsnip and usually has the parsley greens attached. I've never tried it, but it's supposed to be delicious in soup as well as having medicinal properties for the stomach. Rosemary Rosemary has a poetic and romantic past.

In Defense of Food: An Eater's Manifesto Michael Pollan See book keywords and concepts

The fact that at least 30 percent of Americans have a diet deficient in vitamin C, vitamin E, vitamin a, and magnesium surely owes more to eating processed foods full of empty calories than it does to lower levels of nutrients in the whole foods we aren't eating. Still, it doesn't help that the raw materials used in the manufacture of processed foods have declined in nutritional quality or that when we are eating whole foods, we're getting substantially less nutrition per calorie than we used to.

Got it now. vitamin a? Sure, no problem). But of course margarine, being the product not of nature but of human ingenuity, could never be any smarter than the nutritionists dictating its recipe, and the nutritionists turned out to be not nearly as smart as they thought. The food scientists' ingenious method for making healthy vegetable oil solid at room temperature—by blasting it with hydrogen— turned out to produce unhealthy trans fats, fats that we now know are more dangerous than the saturated fats they were designed to replace.

Don't Go to the Cosmetics Counter Without Me, 7th Edition Paula Begoun and Bryan Barron See book keywords and concepts

The big-deal ingredients that supposedly justify the ptice are coenzyme Q10, vitamin a, and vitamin E. The vitamins are barely present in this cleanser and the CoQlO is completely absent, which is strange. Howevet, even if it were present, neither the CoQlO nor the other vitamins can have a positive effect on the skin because when they ate included in a cleanser they are rinsed off before they have a chance to have any impact. So, paying extra for such bells and whistles isn't necessary. Regatdless, this is still a good cleanset for normal to slightly dry skin.

Research indicates that dietary supplements, such as zinc or vitamin a, are most likely not effective in the treatment of acne, and these supplements may very well be unhealthy if too much is taken (Sources: Journal of Pediatric Hematology and Oncology, October 2002, pages 582-584; Journal of the American Academy of Dermatology, August 2002, pages 231-240; and European Journal of Dermatology, June 2000, pages 269-273). For optimal results when fighting blemishes and acne: • Reduce oil to eliminate the environment in which acne-causing bacteria thrive.

Regardless of the individual vitamin—whether it is vitamin a, C, or E—vitamins in skin-care products can't feed the skin or provide nutrition from the outside in. However, many of them can work as antioxidants and that can benefit the skin. Even plain water gets overhyped in skin-care products. Many products use an assortment of exclusive-sounding adjectives—deionized, declustered, purified, triple-purified, demineralized, fossilized—to describe what is nothing more than just plain water.

UVA protection as well as the antioxidant vitamin a and soy extract. Despite those positives, the alcohol content of this spray-on sunscreen, coupled with the high percentage of active ingredients, makes it too irritating for all skin types. © Continuous Protection Sunblock Spray SPF 45 ($9.99for 5 ounces) is nearly identical to the Continuous Protection Sunblock Spray SPF 30 above, save for the greater amount of active ingredient needed to achieve a higher SPF rating. Otherwise, the same review applies. © Essential Moisture Lip Conditioner SPF 15 ($3.39 for 0.

You: Staying Young: The Owner's Manual for Extending Your Warranty Mehmet C. Oz., M.D. and Michael F. Roizen, M.D. See book keywords and concepts

Disregard this advice if you're pregnant or you will be pregnant; your fetus needs even more vitamin a than she gets from you in order to develop her brain.) You can't OD on food sources (carrots, red peppers, sweet potatoes), but make sure your vitamins and supplements don't put you over the limit. YOU Tip: See the Whole Picture. Around the time of menopause, your doc will suggest that you have a DEXA scan-the preferred standard for screening for osteoporosis and determining bone density. We believe in it too.

Foods that Fight Cancer Richard Beliveau, Ph.D. and Denis Gingras, Ph.D. See book keywords and concepts

Certain carotenoids, such as beta-carotene and beta-cryptoxanthin, are precursors to vitamin a, a vitamin essential for growth, while other family members, such as lutein, zeaxanthine, and lycopene, do not exhibit any chemical activity related to vitamin a and thus have other roles to play in body chemistry. For example, lutein and zeaxanthine efficiently absorb the blue light in the spectrum and may thus protect the eyes by reducing the risk of age-related macular degeneration and cataract formation.

The Doctor's Vitamin and Mineral Encyclopedia Sheldon Saul Hendler See book keywords and concepts

But even here evidence is mounting that vitamin a and its derivatives may prove useful. Such effects have already been demonstrated in laboratory animals. Some 22,000 physicians are currently playing guinea pig in a particularly ambitious, long-term study under the supervision of the Department of Medicine at Harvard. Results, due in 1991, will give us some indication of just how effective long-term use of beta-carotene is in terms of reducing the incidence of human cancer.

The 150 Healthiest Foods on Earth: The Surprising, Unbiased Truth About What You Should Eat and Why Jonny Bowden, Ph.D., C.N.S. See book keywords and concepts

Because a cooked cup of the stuff is more concentrated, it gives several times the potassium and twice the calcium, beta-carotene, and vitamin a, plus almost 2 g of fiber. Either way—cooked or raw—it's a bargain. Broccoli * Broccoli is vegetable royalty. When I sent out a request to the best nutritionists, medical doctors, naturopaths, and researchers asking for their personal list of "top ten" healthy foods, it was almost a given that broccoli would be among the most frequently mentioned (and it was). No wonder.

One cup contains more than 2 g of protein, 2 g of fiber, 288 mg of potassium, 43 mg of calcium, 81 mg of vitamin C, plus folate, magnesium, phosphorus, beta-carotene, vitamin a, and 1,277 meg of the superstars of eye nutrition, lutein and zeaxanthin. Lutein and zeaxanthin, both members of the carotenoid family, are being extensively researched for their demonstrated ability to reduce or prevent macular degeneration, the number-one cause of blindness in older adults. And by the way, the broccoli head is actually the flower of the plant.

One serving, a mere 28 calories, contains 100 mg of calcium, 292 mg of potassium, 31 mg of vitamin C, 60 meg of folate, 217 mg of bone-building vitamin K, and more than 3,800 IUs of vitamin a, including 2,300 meg of beta-carotene. And that's not all: There are 1,431 meg of the superstars of eye nutrition, lutein and zeaxanthin, which are being investigated for their ability to fight macular degeneration, the number-one cause of blindness in elderly adults. For its paltry 28 calories, broccoli rabe also contains a healthy helping of fiber—2.4 mg per single serving. This is one great vegetable!

Three medium carrots contain 60 mg of calcium, 586 mg of potassium, a little bit of magnesium, phosphorus, and vitamin C, and of course, a whopping 30,000 IUs of vitamin a, including 15,000 units of beta-carotene and 6,000 of alpha-carotene. They also have 5 g of fiber. Cooked Carrots Prevail Cooking slightly changes the nutritional content and makes some of the nutrients more bioavailable. But both raw and cooked carrots are healthy. To get the most out of the carotenoids found in carrots, eat them with a little fat.

The Doctor's Vitamin and Mineral Encyclopedia Sheldon Saul Hendler See book keywords and concepts

Instead, you should eat at least some foods rich in vitamin a on a daily basis (for example, one average-sized carrot gives you a full 5,000 IUs of beta-carotene) and, as a potential preventive against some of the diseases discussed previously, take a daily supplement of 5,000 to 25,000 IUs of beta-carotene. This amount can safely be used by children as well as adults. Beta-carotene in those quantities is safe for pregnant women too, but, as noted, all pregnant women should consult with their physicians about any drugs, vitamins, minerals or other food supplements they are considering.

More recently it was reported that low blood selenium in the context of low blood vitamin a increases the risk for certain types of skin cancer. Another researcher has found that both oral and topical L-selenomethione were effective in retarding some ultraviolet-induced skin cancers in experimental animals. Beneficial effects of selenium-sulfide lotion (Selsun) to counteract dandruff and other exfoliative and seborrheic dermatitises have been reported. 6) Increases male potency and sex drive—Selenium is known to contribute significantly to sperm production and sperm motility.

Half a pound of calf's liver contains almost 75,000 IUs of preformed vitamin a. Carrots, sweet potatoes, broccoli, spinach, collarets, turnip greens, kale, cantaloupe, winter squash, mustard greens, beet greens, papayas, apricots, watermelons, tomatoes and lettuce are among the foods rich in beta-carotene. A single sweet potato contains nearly 10,000 IUs of beta-carotene. As for supplements, there are numerous beta-carotene preparations on the market today. Most of these appear to be of about equal value. Compare prices.

Supplement Your Prescription: What Your Doctor Doesn't Know About Nutrition Hyla Cass, M.D. See book keywords and concepts

Needed supplements: Take vitamin a (20,000 IU), vitamin E (100 milligrams [mg] in tocotrienol form, see below for more information), vitamin D (400-2,000 IU), folic acid (400 micrograms [meg]), vitamin K (80 meg), calcium (1,000 mg), iron (15 mg, if you're premenopausal), magnesium (400-600 mg), vitamin B12 (200 meg), and zinc (25 mg), and omega-3 fatty acids (1,000-3,000 mg).

The Doctor's Vitamin and Mineral Encyclopedia Sheldon Saul Hendler See book keywords and concepts

Note that those with hypothyroidism and some with diabetes may not be able to efficiently convert beta-carotene to vitamin a and may thus assume a yellowish pigmentation even at lower doses. This pigmentation is not harmful in itself and will fade once beta-carotene intake is stopped or reduced. Those who note yellowish pigmentation while taking beta-carotene in the dose ranges suggested here and who have not previously been diagnosed as diabetic or as having hypothyroidism should be tested for these conditions.

PDR for Herbal Medicines, Fourth Edition Thomson Healthcare, Inc. See book keywords and concepts

Other Names: Mengkudu actions and pharmacology CONSTITUENTS Numerous components have been identified in the noni plant, such as scopoletin, octoanoic acid, potassium, vitamin C, terpenoids, alkaloids, anthraquinones (such as nordamnacan-thal, molindone, rubiadin, and rubiadin-1-methyl ether, an-thraquinone glycoside), -sitosterol, carotene, vitamin a, flavone glycosides, linoleic acid, alizarin, amino acids, L-asperuloside, caproic acid, caprylic acid, ursolic acid and rutin.

Women's Encyclopedia of Natural Medicine: Alternative Therapies and Integrative Medicine for Total Health and Wellness Tori Hudson, N.D. See book keywords and concepts

Herbs and nutrients can enhance the function of T cells, B cells, and natural killer cells that support the immune system's response to infection. vitamin a, vitamin C, the carotenes, vitamin E, zinc, and the B vitamins all play an important role in immune enhancement. Increasing antibody response, stimulating helper T cells, enhancing white blood cell response and function, and directly killing the virus or bacteria are just some of the ways in which these supplements can be helpful during an infection of any kind.

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