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Thoughts on Vitamin D
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m_ob
New Member
Very much so.
We think of vitamin D as the sunshine vitamin, but it's deep within the confines of our bones that it does its best work. Vitamin D is responsible for getting the important bone builders--calcium and phosphorus--to the places in the body where they can help bone grow in children and remineralize in adults.
It does this first by making certain that these minerals are absorbed in the intestines, second by bringing calcium from bones into the blood, and third by helping the kidneys reabsorb the two minerals, says Binita R. Shah, MD, professor of clinical pediatrics and director of pediatric emergency medicine at the State University of New York Health Science Center at Brooklyn.
Fortified milk is one ready source of vitamin D, but you don't have to rely on diet alone to give you the D you need. Ten minutes of summer sun on your hands and face can provide enough, says Hector F. DeLuca, PhD, professor and chairman of the Department of Biochemistry at the University of Wisconsin. "During the summer, you can store up quite a bit of vitamin D in your fat cells," DeLuca says. "If your diet is good, it will probably last you through the winter." (Sitting next to a sun-filled picture window or driving in a car doesn't count, however, because glass filters out the rays you need, DeLuca says.)
As easy as vitamin D is to get for youthful outdoor types, however, such is not the case for the elderly. After evaluating the calcium and vitamin D status of elderly people who were entering nursing homes, researchers from Columbia University in New York City determined that most had low vitamin D levels and that nearly 85% had symptoms of osteoporosis. "There is mounting evidence that vitamin D deficiency in elderly people is a silent epidemic that results in bone loss and fractures," reports Michael F. Holick, MD, PhD, chief of the Section of Endocrinology, Diabetes, and Metabolism at Boston University Medical Center.
Buyer's Guide
It's easy to get the D you need by eating low-fat cheese or yogurt, or by drinking milk. One cup of 1% D-fortified milk contains 100 IU (25% of the DV). Many calcium supplements are also fortified with vitamin D.
Safety Check
Some vitamin D is good--essential, in fact--but more is not better. Because the nutrient is stored in fat cells, long-term high doses can cause calcium to be deposited in the soft tissues of the body, resulting in irreversible damage to the kidneys and cardiovascular system. People age 50 and older may need up to 800 IU per day. Doses of 1,800 IU a day in infants and young children can cause stunted growth.
m_ob
New Member
4,000 would be more ideal for long term supplementation.
Ha! It would take a lot to overdose. The overdose amount can vary depending on the size of us, however 100,000 IU is the estimate for adults and 10,000 IU for children.
Take the vitamin D3 at night and have the VD 25 blood test taken in the morning. This way, the test is in the supplemented amount, not the baseline.
I disagree with some of this info. There are different types of Vitamin D, (VD) VD2 is typically used in the 'fortified' products. VD2 makes our body work to turn it into VD3, so we can use it. During the winter, the flu is common and the northern hemisphere is not receiving very much UVB light. Therefore, most people lack the optimum level, above 30 degree longitude. Storing VD3 for the winter is silly and not very scientific because we are not bears. Humans do not hibernate, bears do.
According to the last conference call I was on with a leading micro-biologist who was providing information. We should have our Vitamin D (VD) serum level tested and maintain 60 ng/ml for cancer fighting/anti-cancer activity. Less than 60ng/ml doesn't have the effectiveness against cancer. VD is still new for most doctors; understanding the amount to optimize the VD serum was the question and 60ng/ml is the answer.
(Some people can absorb VD easier than others and may or may not need to complement their diet with over-the-counter, (OTC) VD.)
VD3 is the higher bio-available OTC one. Brand names do not matter. Standardized or guaranteed potency matters.
The VD that uses nanotechnology is typically a spray under the tongue. Absorption is immediate with nanotechnology, (some dislike pills).
Vitamin K works with VD3.
Vitamin D is a group of fat-soluble prohormones, the two major forms of which are vitamin D2 (or ergocalciferol) and vitamin D3 (or cholecalciferol).Vitamin D obtained from sun exposure, food, and supplements is biologically inert and must undergo two hydroxylation reactions to be activated in the body. Calcitriol (1,25-Dihydroxycholecalciferol) is the active form of vitamin D found in the body. The term vitamin D also refers to these metabolites and other analogues of these substances.
Calcitriol plays an important role in the maintenance of several organ systems. However, its major role is to increase the flow of calcium into the bloodstream, by promoting absorption of calcium and phosphorus from food in the intestines, and reabsorption of calcium in the kidneys; enabling normal mineralization of bone and preventing hypocalcemic tetany. It is also necessary for bone growth and bone remodeling by osteoblasts and osteoclasts.
Without sufficient vitamin D, bones can become thin, brittle, or misshapen. Deficiency can arise from inadequate intake coupled with inadequate sunlight exposure; disorders that limit its absorption; conditions that impair conversion of vitamin D into active metabolites, such as liver or kidney disorders; or, rarely, by a number of hereditary disorders. Vitamin D deficiency results in impaired bone mineralization and leads to bone softening diseases, rickets in children and osteomalacia in adults, and possibly contributes to osteoporosis.
Calcitriol plays an important role in the maintenance of several organ systems. However, its major role is to increase the flow of calcium into the bloodstream, by promoting absorption of calcium and phosphorus from food in the intestines, and reabsorption of calcium in the kidneys; enabling normal mineralization of bone and preventing hypocalcemic tetany. It is also necessary for bone growth and bone remodeling by osteoblasts and osteoclasts.
Without sufficient vitamin D, bones can become thin, brittle, or misshapen. Deficiency can arise from inadequate intake coupled with inadequate sunlight exposure; disorders that limit its absorption; conditions that impair conversion of vitamin D into active metabolites, such as liver or kidney disorders; or, rarely, by a number of hereditary disorders. Vitamin D deficiency results in impaired bone mineralization and leads to bone softening diseases, rickets in children and osteomalacia in adults, and possibly contributes to osteoporosis.
sleevefreezer
New Member
From what I have read, most of us are Vitamin D deficient! I'm an avid Dr. Northrup reader/fan and she's been stressing the importance of Vitamin D since 2005 or so in all her publications, so there's no excuse for me. I haven't been tested, but I'm sure I could use more, too. I'm a big fan of 10 minute sunbaths (early or late in the day when the weather allows). Vitamin D, calcium, and magnesium all work together to regulate many processes in your body, including metabolism. Important stuff!..
Absolutely! I am an advocate for daily vitamin and mineral supplementation. It is my opinion the overwhelming evidence is for this practice. Of course, the question is what form/brand?
Vitamin D May Help Immune System Protect Body From Disease.
The UK's Daily Mail (3/7, Macrae - Sunshine play vital role in | Mail Online) reported that, according to research published in the journal Nature Immunology, "vitamin D, created when skin is exposed to the sun, can help protect the body from disease." In laboratory tests, researchers demonstrated that "the vitamin triggers dormant white blood cells into turning into 'killers' that seek out and destroy infections."
The UK's Telegraph (3/7, Alleyne - Vitamin D 'triggers and arms' the immune system - Telegraph) reported that scientists believe this discovery "provides much needed information about the immune system and will help them regulate the immune response," not just "in fighting disease, but also in dealing with anti-immune reactions of the body and the rejection of transplanted organs."
The UK's Daily Mail (3/7, Macrae - Sunshine play vital role in | Mail Online) reported that, according to research published in the journal Nature Immunology, "vitamin D, created when skin is exposed to the sun, can help protect the body from disease." In laboratory tests, researchers demonstrated that "the vitamin triggers dormant white blood cells into turning into 'killers' that seek out and destroy infections."
The UK's Telegraph (3/7, Alleyne - Vitamin D 'triggers and arms' the immune system - Telegraph) reported that scientists believe this discovery "provides much needed information about the immune system and will help them regulate the immune response," not just "in fighting disease, but also in dealing with anti-immune reactions of the body and the rejection of transplanted organs."
jasthace
New Member
I'm pretty sure fish oil is a good source of vitamin D also.
I had pneumonia last year,which developed from a throat infection via and cold.I can tell you this,it is imperative to keep a health immune system and train smart during winter periods
I had pneumonia last year,which developed from a throat infection via and cold.I can tell you this,it is imperative to keep a health immune system and train smart during winter periods
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I do not intend to put you on the spot but do you have any suggestions of brands you feel are superior?
ellencannon
New Member
great researched .
Thanks for sharing this.
keep sharing more and more info.
Thanks for sharing this.
keep sharing more and more info.
ellencannon
New Member
hi liza gill,
I love your post its really very informative .Thanks.
I love your post its really very informative .Thanks.
Are you sure it isn't 3500 a day?
You need to have the proper blood test run to determine your current levels, then take the dosing from there. There is no set amount per se.
