Respuesta a preguntas frecuentes de nutrición

Respuestas a las preguntas más destacadas sobre salud y nutrición por el Doctor Michael Greger FACLM y el grupo de Moderadores Voluntarios de NutritionFacts.org. Las preguntas han sido tomadas de los comentarios en los videos y blogs en el sitio. ¡Participa en nuestros foros para que tu pregunta sea incluida!

Is cabbage effective against breast cancer?

I have read that new research says cabbage can be good against certain cancers but I don’t remember if breast cancer is one. Both of my grandmothers had breast cancer so I am VERY interested in breast health. Thank you for this...

Is thermography better than mammograms for early breast cancer detection?

Thermography is the new early detection method. Check it out. Damian / Originally commented on Cancer prevention and treatment may be the same thing Answer: Unfortunately, thermography alone may have a sensitivity of only about 83% in detecting breast cancer (according to the latest review)....

Does “organic” chicken contain less arsenic?

Does “organic” chicken fare any better? Kristen / Originally posted in Dr. Oz, apple juice, and arsenic: chicken may have 10 times more Answer: Great question, Kristen! In a survey of arsenic levels in U.S. chicken, while nearly three-quarters of the breasts, thighs and livers...

Are there any risks of excess vitamin B12 consumption?

I have just posted some of your recent B12 videos on facebook to try and help my friends who refuse to accept the need to have an intake of B12 on a vegan diet. Most are convinced their ‘friends’ have been told...

How do you achieve a good omega 3 to omega 6 fatty acid ratio?

What would you suggest as an ideal omega 3,6,9? Eric / Originally asked on Avoiding Cholesterol is a No Brainer Answer: I try to think in terms of whole food sources rather than nutrients (have you read The China Study? It has a...

Dutch Cocoa Processed With Alkali vs Regular Cocoa

  Cocoa comes from the cacao bean, and like other beans, has wonderful health-promoting flavanol phytonutrients, like in green tea.   What Are The Health Benefits of Cocoa? Lowers blood pressure Lowers bad cholesterol Boosts good cholesterol Unstiffens arteries Boosts the immune...

¿Cuál es el mejor modo de obtener vitamina B12?

Yo recomiendo: 1.      al menos 2000 mcg (µg) de cianocobalamina una vez a la semana, preferiblemente en forma de suplemento masticable, sublingual o líquido tomado con el estómago vacío 2.      o al menos 50 mcg diarios de cianocobalamina suplementaria (no tienes que preocuparte...

Is vitamin D3 (cholecalciferol) preferable to D2 (ergocalciferol)?

I have read that D3 (cholecalciferol) is the better source of vitamin D. Can you please clarify? Jen Ferdinand Answer: Such a good question! Taken daily in doses under 2000 IU, vitamin D2 (ergocalciferol) and D3 (cholecalciferol) appear bioequivalent (meaning they both work just as...

Are free-range eggs healthier than conventional eggs?

I have recently read that there is a difference between commercial eggs and farm eggs — I have six chickens that roam freely, and I use the eggs for cooking, for the occasional breakfast, and even for a dinner at least once...