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Frequently Asked Questions


Welcome to the Frequently Asked Questions page. Please review the information below and if your question is still unanswered, Ask Dr. Dowd.



Historically grain has allowed humans to evolve from small bands of hunter-gatherers to large complex specialized societies. As we have industrialized our food production we have increased the processing of grain stripping away what few nutrients it has. Today grain provides calories to keep us alive but does not promote health. Its advantage is low cost and ease of production in large quantities. The medical literature is filled with descriptions of malnourished children and adults whose diet was limited to porridge.

Let’s look at an example. Three ounces of whole grain cereal has about 3 grams of protein, 24 grams of carbohydrates and some fiber. It has 210 calories with skim milk and produces about 8 points of acid. An equivalent serving of pork tenderloin has 25 grams of protein, no carbohydrates and 5 grams of fat. It has 159 calories and produces 9 points of acid. So the grain gives you mostly carbs for breakfast, almost no protein and produces 2-3 points of acid for every gram of protein. The lean pork provides you with mostly protein, no carbs and produces 0.4 points of acid per gram of protein or 6 times less acid per gram of protein.

To look at it another way you would have to eat 8 bowls of whole grain cereal to get the same amount of protein as the lean pork and in the process you will get 192 grams of carbohydrates and 864 calories. If you add skim milk to the equation you would still need to eat 3 bowls of cereal to get the same protein and in the process consume 950 calories. It is impossible for cereal and milk to equal the nutrition in meat and vegetables with fewer calories and less acid.

For starters, vitamin D is not a vitamin; it is a hormone from the same family of steroid hormones as estrogen, progesterone, testosterone, and cortisol. This means that, like these other hormones, vitamin D regulates gene expression in the nucleus of a cell. It doesn’t just have a seat on the front row in regulating our biochemistry, it is conducting the orchestra!

Our genes are just a compilation of notes. Geneticists will tell you that we are all 99.999 percent identical. It is not our genes or notes that make the music of our life it is how the notes are put together and played. And, vitamin D and our diet are writing the music from the moment of conception in the womb.

Dr. David Barker from Southampton, UK has published numerous ground breaking articles in journals like Lancet and the New England Journal of Medicine. What his studies show is that deprivation of nutrients in the womb during fetal development increases our risk of obesity, hypertension, diabetes, heart disease and bone disease as adults. Data from other researchers show that inadequate vitamin D and protein lead to smaller infants.

The National Health and Nutrition Examination Survey III conducted by the CDC shows a relationship between vitamin D deficiency and obesity, hypertension and diabetes in adults (See Chapter 9 References). Vitamin D deficiency early in development has also been associated with a 200 percent increase in the incidence of type I diabetes (childhood) and multiple sclerosis, both autoimmune diseases. And numerous studies show roughly half the risk for cancer with greater UV light exposure or higher vitamin D intake.

We have long known that vitamin D is important for calcium absorption and strong bones and teeth (See Chapter 13 References). We now know that it also slows cell growth, preventing the assembly line mistakes that lead to malignant transformation in cells (See Chapter 12 References). It regulates activation of our immune system during fetal development, ensuring that our immune system establishes tolerant recognition of our own normal cells (See Chapter 11 References). This early education of the immune system combined with normal blood levels enhances our ability to recognize and fight cancer cells and infections throughout our life.

In the womb vitamin D directs brain development in conjunction with omega 3 fatty acids and other dietary constituents (See Chapter 10 References). Lack of vitamin D during early development increases the risk of schizophrenia in males and Parkinson’s disease later in life. It is the cause of seasonal affective disorder and dramatically increases the likelihood of depression in Alzheimer’s patients. More recent data suggest it may also lead to more rapid loss of cognitive function in Alzheimer’s disease.

Just last month an analysis of numerous vitamin D studies suggested you may live longer if you take vitamin D. For more detailed explanations and examples of how vitamin D works in health and disease get The Vitamin D Cure (buy it now).

Your vitamin D level is low primarily due to a lack of sun exposure in the middle of the day. Inadequate intake of green leafy vegetables and cold water fish (salmon, tuna, sardines) also contribute to lower vitamin D levels. As little as 200 years ago our sun exposure was much greater than today. Americans and Europeans were mostly farmers and worked out of doors all day. The industrial revolution around the Civil War and into the 20th century brought us all indoors for work. This transformation accelerated after World War II and the digital revolution of the nineties.

As work moved to inland factories away from rivers and oceans our fish consumption dropped as well. The industrialization of our diets also decreased our fresh produce intake.

Although eating these foods is important, so is cooking for food safety. This is why supplementing vitamin D following the guidelines in The Vitamin D Cure is so important and convenient.

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