vendredi 30 mars 2012

Mitos sobre la Soja / The Dangers of Soy

En la preparación de tus propios alimentos de soja, tales como la soja cocida o asada, o la leche de soja, asegúrate de que es calentada de manera adecuada. El método chino tradicional para la preparación de la soja era un trabajo que requería tanto tiempo que era relegado a los monjes. Consistía en poner primero la soja a remojo y en cocerla dos veces durante "el periodo de tiempo completo de un incienso".

Seguir leiendo (fuente): Asociación de Medicinas Complementarias

Marketing para la comida perfecta

“Imagina que se pudiera cultivar la comida perfecta. Esta comida no sólo nutriría a un precio asequible, sino que también sería deliciosa y fácil de preparar de diferentes maneras. Sería una comida saludable sin grasa saturada. De hecho, constituiría una fuente de juventud virtual a los 40”. El texto pertenece a un artículo de Dean Houghton para “The Furrow”, una revista que publica en 12 idiomas John Deere. “Esta comida ideal evitaría, e incluso quizás curaría, algunas de las enfermedades más temidas. Se podía cultivar está cosecha milagrosa en una gran variedad de suelos y climas. Su cultivo enriquecería, no mermaría, la tierra. Esta comida milagrosa ya existe. Se llama soja”.
Simplemente imagina. Los granjeros han estado imaginando y plantando más soja. Lo que fuera una vez un cultivo minoritario, que aparecía en 1913 en las listas del Departamento de Agricultura no como un alimento, sino como un producto industrial, ahora cubre 72 millones de acres de suelo americano cultivable. La mayoría de está cosecha se usará para alimentar a pollos, pavos, cerdos, vacas y salmón. Otra cantidad importante se empleará para producir aceite para margarina y aliños de ensalada.
Los avances en la tecnología hacen posible producir concentrado de proteína de soja a partir de lo que una vez se consideraban productos de desecho - los pedacitos desgrasados de soja de alto contenido en proteínas.-, y transformar una sustancia de un aspecto y olor terribles en productos que puedan ser consumidos por los seres humanos. Aromas, conservantes, edulcorantes, emulsificantes e ingredientes sintéticos, han convertido al concentrado de proteína de soja, el patito feo de las comidas procesadas en la Cenicienta de la nueva era.
La continuación del articulo (fuente): aqui

Otros articulos interesantes sobre el tema: Dieta Metabolica


English :

Some people have publicly said that soy is a beneficial food and we should eat more of it, especially as a replacement for red meat. Many vegetarians rely heavily on it for their protein. It has been claimed to be good for women who are menopausal or peri-menopausal. But how true is this? Let's take a look at some of the myths about soy, and the real truth. Thanks to the Weston A Price Foundation for the following information: 

Myth: Use of soy as a food dates back many thousands of years.
Truth: Soy was first used as a food during the late Chou dynasty (1134-246 BC), only after the Chinese learned to ferment soy beans to make foods like tempeh, natto and tamari.

Myth: Asians consume large amounts of soy foods.
Truth: Average consumption of soy foods in Japan and China is 10 grams (about 2 teaspoons) per day. Asians consume soy foods in small amounts as a condiment, and not as a replacement for animal foods.

Myth: Modern soy foods confer the same health benefits as traditionally fermented soy foods.
Truth: Most modern soy foods are not fermented to neutralize toxins in soybeans, and are processed in a way that denatures proteins and increases levels of carcinogens.

Myth: Soy foods provide complete protein.
Truth: Like all legumes, soy beans are deficient in sulfur-containing amino acids methionine and cystine. In addition, modern processing denatures fragile lysine. 

Myth: Fermented soy foods can provide vitamin B12 in vegetarian diets.
Truth: The compound that resembles vitamin B12 in soy cannot be used by the human body; in fact, soy foods cause the body to require more B12

Myth: Soy formula is safe for infants.
Truth: Soy foods contain trypsin inhibitors that inhibit protein digestion and affect pancreatic function. In test animals, diets high in trypsin inhibitors led to stunted growth and pancreatic disorders. Soy foods increase the body’s requirement for vitamin D, needed for strong bones and normal growth. Phytic acid in soy foods results in reduced bioavailabilty of iron and zinc which are required for the health and development of the brain and nervous system. Soy also lacks cholesterol, likewise essential for the development of the brain and nervous system. Megadoses of phytoestrogens in soy formula have been implicated in the current trend toward increasingly premature sexual development in girls and delayed or retarded sexual development in boys.

Myth: Soy foods can prevent osteoporosis.
Truth: Soy foods can cause deficiencies in calcium and vitamin D, both needed for healthy bones. Calcium from bone broths and vitamin D from seafood, lard and organ meats prevent osteoporosis in Asian countries—not soy foods.

Myth: Modern soy foods protect against many types of cancer.
Truth: A British government report concluded that there is little evidence that soy foods protect against breast cancer or any other forms of cancer. In fact, soy foods may result in an increased risk of cancer.

Myth: Soy foods protect against heart disease.
Truth: In some people, consumption of soy foods will lower cholesterol, but there is no evidence that lowering cholesterol improves one’s risk of having heart disease.

Myth: Soy estrogens (isoflavones) are good for you.
Truth: Soy isoflavones are phyto-endocrine disrupters. At dietary levels, they can prevent ovulation and stimulate the growth of cancer cells. Eating as little as 30 grams (about 4 tablespoons) of soy per day can result in hypothyroidism with symptoms of lethargy, constipation, weight gain and fatigue.

Myth: Soy foods are safe and beneficial for women to use in their postmenopausal years.
Truth: Soy foods can stimulate the growth of estrogen-dependent tumors and cause thyroid problems. Low thyroid function is associated with difficulties in menopause.

Myth: Phytoestrogens in soy foods can enhance mental ability. 
 Truth: A recent study found that women with the highest levels of estrogen in their blood had the lowest levels of cognitive function; In Japanese Americans tofu consumption in mid-life is associated with the occurrence of Alzheimer’s disease in later life.
Myth: Soy isoflavones and soy protein isolate have GRAS (Generally Recognized as Safe) status.
Truth: Archer Daniels Midland (ADM) recently withdrew its application to the FDA for GRAS status for soy isoflavones following an outpouring of protest from the scientific community. The FDA never approved GRAS status for soy protein isolate because of concern regarding the presence of toxins and carcinogens in processed soy.

Myth: Soy foods are good for your sex life.
Truth: Numerous animal studies show that soy foods cause infertility in animals. Soy consumption enhances hair growth in middle-aged men, indicating lowered testosterone levels. Japanese housewives feed tofu to their husbands frequently when they want to reduce his virility.

Myth: Soy beans are good for the environment.
Truth: Most soy beans grown in the US are genetically engineered to allow farmers to use large amounts of herbicides.

Myth: Soy beans are good for developing nations.
Truth: In third world countries, soybeans replace traditional crops and transfer the value-added of processing from the local population to multinational corporations. 


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