Carcinogens natural

Cycasin Roots, leaves, and seeds of the cycas palm 

Pyrrolizidine alkaloids Coltsfoot, comfrey, groundsel, Indian plantain 

Safrol Aniseed oil, camphor, cinnamon oil, nutmeg, ginger, cocoa, pepper 

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Dr. Ames also indicates that almost every plant product in the supermarket is likely to contain natural carcinogens. He estimates the typical American eats about ten thousand times more natural pesticides than the residue of man-made agricultural pesticides ingested. Thus about 99.99 percent of the pesticides we take in each day are natural and only 0.01 percent are man-made. (The referenced article provides a detailed discussion focusing on the fact the human body is a marvelous machine, designed to survive and prosper in a hostile world. A major section of the article describes the work of the enzymes that successfully deal with carcinogen chemical damage to our DNA.)... 

Hlrono, I. Natural carcinogenic products of plant origin,... 

DES (diethylstilbestrol), xiii, 106, 115, 206 detoxification, 34 developmental toxicity, 103 dibenz(a,h)anthracene, 112 diet, 5, 13-14,106 as exposure pathway, 13-14 chemical composition of, 5 effect on absorption of chemicals, 29 natural carcinogens in, 229-31 role in cancer, 116—20, 154-6 role in cancer prevention, 230 Dioscorides, 39 dioxin, xiii, 54, 164, 180 distribution of chemicals in body, 31-2 DNA damage, 150-3, 156 Doll, R. (Sir), 117-20, 155, 177 Donora, Pennsylvania, 81 dose, 16,39,48,71 absorbed, 27-31, 161 acute, 160... 

Aflatoxins produce liver cancer and are possibly the most potent natural carcinogens known. materials. 

There are more natural carcinogens by weight in a cup of coffee than potentially carcinogenic synthetic pesticide residues in the average US diet in a year, and there are still a thousand known chemicals in roasted coffee that have not been tested. 

The U. S. Congress added the Delaney clause to the Food, Drug, and Cosmetic Act in 1958.20 The clause reads No additive shall be deemed to be safe if it is found to induce cancer when ingested by man or animal, or if it is found, after tests which are appropriate for the evaluation of the safety of food additives, to induce cancer in man or animal. It does not cover natural carcinogens in foods or environmental carcinogens, such as chlorinated dioxins and polychlorinated biphenyls. The Delaney clause was used to ban saccharin in 1973, but the U. S. Congress overrode this... 

The point of this book is not to catalogue every natural carcinogen known to modern science. If that is the goal, the interested reader should consult the exhaustive literature by Dr. Ames listed in the references. My point is that these known toxins are widespread in our produce yet we already know that eating these same fruits and vegetables is actually good for your health. Why ... 

Radiation impinges on us from the environment as background radiation, from radionuclides in the ground and water, and from cosmic radiation. Medical irradiation contributes a small but presumably significant fraction. By far the largest and most potent natural carcinogen is the ultraviolet component of sunlight. 

The possibility that the natural carcinogens originating both from abiotic or biotic materials were peaceful aborigines of ecosystems w even the driving forces of their development. However, the newcomers of the technological era have becrane the barbarians which affect the biocenoses. What is the basis for this suggestion [7]. 

ACHS. 1996. Does nature know best Natural carcinogens and anticarcinogens in America s food. New York American Council on Science and Health. 

Among all mycotoxins, aflatoxins are the most toxic, widespread, and the strongest natural carcinogens (Table 11.2). The International Agency for Research on Cancer (lARC) has defined aflatoxin B1 (AFBl) as a carcinogen [11]. 

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