Gary Null, Ph.D.
See book keywords and concepts |  Carrot juice is valuable for its high beta-carotene and vitamin a content, but should be watered down as it is also high in sugar, and can adversely affect blood sugar. Adding a teaspoon of vitamin C to juices makes them into a real preventive tonic.
•Green Tea...The Chinese, who have low incidences of cancer, routinely drink this beverage instead of coffee. Green tea counters the effects of radiation, keeps the pH of the blood balanced, and is high in antioxidants. The substances called polyphenolic catechins found in green tea are actually stronger than vitamin E in fighting free radicals. |
Earl L. Mindell, R.Ph., Ph.D.
See book keywords and concepts |  Be sure you're getting both beta-carotene and vitamin a in your multivitamin formula. Eat plenty of fresh fruits and vegetables.
Other Tips on These Drugs
They can skew the results of many blood and urine tests.
Loop Diuretics Bumetanide (Bumex)
Ethacrynic Acid (Edecrin)
Furosemide (Lasix)
Torsemide (Demadex)
What Do They Do in Your Body?
Increase urination, reduce fluid and water retention, largely by reducing sodium chloride (salt) uptake in your cells.
CAUTION! |
Ralph Moss, PhD
See book keywords and concepts |  It turned out that the higher cancer rate was in the beta-carotene and vitamin a group: 28 percent more lung cancers and 17 percent more deaths from all causes in the vitamin-treated group.
Needless to say, these results were surprising and disappointing. They put a damper on the belief that one or two nutrients could be a "magic bullet" for cancer.
We are still suffering from the after effects of these studies. In fact, every attempt to rekindle interest in antioxidants is invariably met with, "What about CARET? |
Sheldon Saul Hendler and David Rorvik
See book keywords and concepts |  Effect of long-term beta-carotene and vitamin a on serum cholesterol and triglyceride levels among participants in the Carotene and Retinol Efficacy Trial (CARET). Atherosclerosis. 1999; 145:425-432.
Santos MS, Gaziano JM, Leka LS, et al. Beta-carotene-induced enhancement of natural killer cell activity in elderly men: an investigation of the role of cytokines. Am J Clin Nutr. 1998; 68:164-170.
Santos MS, Meydani SN, Leka L, et al. Natural killer cell activity in elderly men is enhanced by beta-carotene supplementation. Am J Clin Nutr. 1996; 64:772-777.
Tavani A, La Vecchia C. |
Gary Null, Ph.D.
See book keywords and concepts |  Results of this study on the relationship between dietary intake of beta-carotene and risk of prostate cancer in Japan found that risk reduction by beta-carotene and vitamin a was significant in men between the ages of 70-79.
—Y. Ohno, et al., "Dietary Beta-carotene and Cancer of the Prostate: A Case-control Study in Kyoto, Japan," Cancer Research, 48(5), March 1, 1988, p. 1331-1336.
This study examined the effects of dietary vitamin A on mammary tumorigenesis in rats exposed to 7,12-dimethylbenz(a)anthracene. | | Results of this study showed that mice supplemented with beta-carotene and vitamin a received far more benefit from local irradiation against 2 X 10(5) C3HBA-induced carcinogenesis than controls. Beta-carotene proved to be more powerful than vitamin A in this respect.
—E. Seifter, et al., "Regression of C3HBA Mouse Tumor Due to X-ray Therapy Combined with Supplemental Beta-Carotene or Vitamin A," Journal of the National Cancer Institute, 71(2), August 1983, p. 409-417. | | Results of this study found significant, independent inverse associations between dietary beta-carotene and vitamin a and the risk of epidermoid lung cancer in humans.
—J.F. Dartigues, et al., "Dietary Vitamin A, Beta Carotene and Risk of Epidermoid Lung Cancer in Southwestern France," European Journal of Epidemiology, 6(3), September 1990, p. 261-265.
Results of this study showed that mice supplemented with 5 or 10 mg of vitamin A-palmitate twice a week either topically or orally for 3 months lead to a reduction in tumors induced from black pepper extract.
—M.H. Shwaireb, et al. | | Results of this case-control study found a significant inverse association between daily intake of beta-carotene and vitamin a and the risk of prostatic cancer.
—K. Oishi, et al., "A Case-control Study of Prostatic Cancer with Reference to Dietary
Habits," Prostate, 12(2), 1988, p. 179-190.
Results of this third phase of the well-known Basel Study found strong inverse associations between dietary beta-carotene and all cancers examined, particularly cancers of the lung and stomach. |
Michael T. Murray, N.D., Joseph E. Pizzorno, N.D.
See book keywords and concepts |  Although many single nutrients may play a significant role (particularly beta-carotene and vitamin a, folic acid, vitamin B6, and vitamin C), it is important to recognize that sixty-seven percent of patients with cervical cancer have nutritional deficiencies. Many other patients have marginal but "normal" nutritional status as determined by routine evaluations. These results suggest that multiple nutrient deficiencies are probably the rule rather than the exception.1213
It is clear that vitamin deficiencies play a major role in the onset of cervical dysplasia/ carcinoma. |
Committee on Comparative Toxicity of Naturally Occurring Carcinogens
See book keywords and concepts |  These include broad classes of foods such as fruits and vegetables, as well as specific substances such as beta-carotene and vitamin a. Because the human diet is a complex mixture of many constituents, dietary cancer risk assessment needs to take into account the potential for synergistic and antagonistic interactions among dietary components.
Methods for estimating cancer risk rely largely on epidemiologic and toxicological data. |
Ralph W. Moss, Ph.D.
See book keywords and concepts |  In addition, it should be noted that one Dutch study showed a protective value for beta-carotene and vitamin a, but no conclusive benefit for vitamins C or E (11).
1. London RS, et al. Endocrine parameters and alpha-tocopherol therapy of patients with mammary dysplasia. Cancer Res.l981;41:3811-3.
2. London RS, et al. The effect of alpha-tocopherol on premenstrual symptomatology: a double-blind study. J Am Coll Nutr.l983;2:115-22.
3. London RS, et al. The effect of alpha-tocopherol on premenstrual symptomatology: a double-blind study. II. Endocrine correlates. J Am Coll Nutr.l984;3:351-6.
4. |
Patrick Quillin, PhD,RD,CNS
See book keywords and concepts |  There is a synergistic benefit of using vitamin A with carotenoids in patients who are being treated with chemo, radiation and surgery for common malignancies.26 beta-carotene and vitamin a together provided a significant improvement in outcome in animals treated with radiation for induced cancers.27
VITAMIN E. Vitamin E protects the body against the potentially damaging effects of iron and fish oil. Vitamin E deficiency, which is common in cancer patients, will accentuate the cardiotoxic effects of adriamycin. |
Ralph Moss, PhD
See book keywords and concepts | | Half the participants were given synthetic beta-carotene and vitamin a. The other half were given placebos.
On January 18, 1996, NCI announced that the study was being canceled eighteen months early. A statistical check had shown that one of the two groups was experiencing a higher rate of cancer. To prevent half of the participants from possibly being harmed, the secret code of the "blinded" study was broken. |
Janet Zand, LAc, OMD, Allan N. Spreed, MD, CNC, James B. LaValle, RPh, ND
See book keywords and concepts |  Be sure to take this supplement at least one hour before or after taking antibiotics, as antibiotics kill off both good and bad bacteria.
¦ beta-carotene and vitamin a are healing to the skin. While vitamin A can be toxic in large doses, beta-carotene—which the body uses to produce vitamin A as needed— appears to be extremely safe. Take 25,000 international units of beta-carotene and 10,000 international units of vitamin A, twice daily, five days a week, for one month. |
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