Re: balanced diet vs. vitamins
It still amazes me how much the nutrition industry is like the Wild West, were almost anything goes. I continue to find it humorous with regard to some of the information that is promoted as fact when it is little more than hersay or opinion. The reality is that clinical nutrition is a real part of our healthcare system, though limited for various reasons which are not worth discussion at this point. Nutrition is science and simply nothing more than biochemistry. If you are not pulling your information from and basing your comments from peer review literature, then your are only tauting beliefs and not science. Concrete nutrition information can be found in journals such as the following that have been reviewed by a body of professionals as opposed to the newsstand publications which generally have a secondary motive beyond disseminating information.
American Journal of Clinical Nutrition
Advances in Nutrition
Journal of Nutrition
Nutrition Notes
European Journal of Nutrition
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Patriot Prepper</div><div class="ubbcode-body"> There is not way to know what your body needs. Blood tests do not work. Tissue/hair mineral analysis is about the best method for determining your nutritional needs regarding vitamins and mineral. </div></div>
This is only partially correct. Hair analysis has shown utility in assessing toxic metals, but the jury is still out on using it to assess essential elements. It appears that there are still complicating factors, most notably how the sample is analyzed. At current there is not universal standardization for this process.
Quantitative analysis of toxic and essential elements in human hair. Clinical validity of results.
As for blood tests, it is in general dependant on the media that you are using. If by blood you are referring to serum, then yes, nutrient levels are most often poorly assessed by this media. However, if by blood you mean living tissue such as lymphocytes, or white blood cells, then you would be incorrect to say that blood tests do not work. In fact, even though serum levels are less than ideal most of the time, literature does support measurement of them in certain clinical scenarios.
Functional vitamin B12 deficiency
Homocysteine lowering with folic acid and B vitamins in vascular disease
This one even came out of the New England Journal of Medicine, arguably one of the most respected medical texts in the United States, if not the world.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KansasMag</div><div class="ubbcode-body">Unless you have a very limited diet,. . . .its pretty uncommon to have a vitamin/mineral deficiency. </div></div>
Actually it is relatively common to have a nutrient deficiency. Unless you are looking at standardized labs, you would have no knowledge of the fact that the average individual has about 4 nutrient deficiencies at the initial time of testing, as performed through lymphocyte proliferation, sometimes many more. It is hardly necessary to have scurvy, beri beri or any other nutrient deficiency related disease to justify the need for targeted nutritional supplementation. This is akin to saying that you must begin having peripheral neuropathies or gangrene, findings consistent with advanced / fragile diabetics, before you begin to take action on suboptimal glucose levels. This is illogical thinking.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ATH</div><div class="ubbcode-body">You have to have a pretty poor diet to develop deficiency of common vitamins. A basic multivitamin may not hurt you, but downing large quantities of any vitamin is not proven to do anything positive for you. Mega-doses of antioxidants previously touted have been shown to do no good, and possible harm, as well. </div></div>
Actually diet alone is only one factor that can drive nutrient deficiencies. Exercise, stress, lack of sleep, age, etc. are all potential inducers of nutrient deficiencies. The key with supplementation is to balance your intake based off of your needs. This is determined by the testing. As to the antioxidants being shown to cause harm, this was mostly in a smoking population, and also has since been shown to be related to the fact that single antioxidants were given. This is not the proper application of supplemental antioxidants which should be given in balanced, established ratios so as to prevent disturbance of the "antioxidant pool" as opposed to single nutrients. More recent research clearly shows that the use of phytochemicals as antioxidants are very potent therapuetic agents in almost all chronic disease states and do not run the risk of imbalancing the "antioxidant pool", but rather appear to add balance to it.
For more information and validation of the above comments, I would refer you to two sites.
1.
SpectraCell Laboratories Clinical Education Center
2.
PubMed (PubMed is the site where all the medical journal abstract are housed.)
I would implore you to spend a little time on these websites, as well as other creditable sources, if you so desire to have a better grasp of nutrition.