Page 19 - Spring2020
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Children who consume raw, pastured dairy  occurrence of hyperkeratosis, including psoriasis and acne. When we
            products rich in butterfat along with a serving of  look at patients with acne, they have lower serum or plasma vitamin A
            liver weekly or cod liver oil daily will get their  and often zinc will be low. Zinc allows us to use our vitamin A so we also
            vitamin A naturally. In fact, during World War  have to consider zinc deficiency with skin diseases, especially if someone
            II, the government of the United Kingdom had  is on a more plant-based diet or avoiding red meat or other foods that are
            a program to make sure all of the children got  good sources of zinc.
            their daily cod liver oil, and this continued for     A colleague reported to me that the bumps on the back of her arms
            two or three years after the war.         did not clear up until she began taking desiccated oyster, which is full
                I read an old report by a medical doctor  of zinc. Her diet was rich in vitamin A and she ate red meat, but she still
            who treated Civil War soldiers on the Confed-  had the bumps until she got more zinc in her diet.
            erate side. Due to a lack of food, they had very     In moderate amounts, UV exposure from sunlight is great for skin
            nutrient-deficient diets. Many of them were night  cells, but excessive UV exposure will lower the vitamin A content of
            blind. They also had an intolerance to daylight  your skin. Sensible sun exposure is fine and good for your skin, but you
            as their night blindness got worse. The doctor  don’t want to overdo it.
            noted that they had persistently dilated pupils,     Vitamin A upregulates the collagen-specific genes that govern heal-
            which explains the photophobia. If your pupils  ing. You cannot form collagen without the right amount of vitamin A.
            can’t contract, then daylight will be very painful.     A possible indicator of vitamin A status is salivary pH. I see a fair
            This could be another possible sign of vitamin  number of patients with low pH (less than 6.8) in the saliva, which could
            A deficiency to look for.                 indicate vitamin A deficiency. Vitamin A deficiency will lower the ability
                What happens to your skin if you are  of the saliva to contain the minerals needed to buffer the acidity. This
            vitamin A deficient? A key sign is follicular  will result in acidic saliva and a tendency to form cavities. In children the
            hyperkeratosis, namely bumps where the hairs  tooth enamel will not form well without vitamin A. Vitamin A-deficient
            come out of the follicle. Hyperkeratosis is just  children will have softer teeth and greater susceptibility to cavities.
            a buildup of keratin, a hard substance similar to     Vitamin A has a reputation for causing bone loss. A handful of ob-
            what is in our nails. We need a little keratin in  servational studies have found that a higher intake (greater than 5,000
            our skin, but “hyper” means we have too much.  IU per day) or higher blood levels of vitamin A are associated with lower
                Dry skin, eczema, flaky scalp and acne are  bone mineral density (BMD) or increased fracture risk.
            all signs of vitamin A deficiency. Anyone who     In one study involving thirty-six thousand women, the treatment
            has acne should consider vitamin A deficiency  group received 400 IU of vitamin D and 1000 mg of calcium carbon-
            and get some vitamin A-rich foods in the diet. If  ate for five years. After seven years they showed a slight improvement
            you are vitamin A deficient, your hair and nails  in BMD but no statistical difference in hip fractures. Surprisingly, the
            might not grow very well. Poor wound healing  treatment group had 17 percent more kidney stones.
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            is another sign. In hospitals, they know that     Other studies indicate that vitamin A is associated with a reduction
            patients with wounds need vitamin A.      in fractures. The discrepancy can be explained by the fact that vitamin
                In my practice, one in every three or four  A contributes to osteoporosis only in cases of vitamin D deficiency or
            clients has a certain degree of follicular hyper-  when the ratio of vitamin A to D is massively out of balance. In animal
            keratosis. In his book Functional Medicine, Dr.  studies, both high and low vitamin A intakes reduce BMD.
            Alan Gaby reports his own frequent finding of     Vitamin A is important for bone synthesis; vitamin A deficiency can
            mild follicular hyperkeratosis on the extremities  cause impaired bone remodeling due to unchecked function of osteoblasts
            of both children and adults. Most of the patients  as osteoblast production is decreased. In a case study of a teenager lack-
            I’ve seen have never even looked at their arms or  ing vitamin A due to a very poor diet starting in early childhood, it was
            considered what those bumps signify, and their  determined that his vision loss was due to the compression of the optic
            doctors dismiss them as well.             nerve from excessive bone growth in his skull. Interestingly, he did not
                Why does our skin need vitamin A? Vi-  have night blindness or eye dryness, which seems to be absent in about
            tamin A has anti-keratinizing properties as it  5 percent of children with severe vitamin A deficiency.
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            helps differentiate our skin cells into what they
            are supposed to look like. All of the surfaces of  THE IMMUNE SYSTEM
            our body come in contact with the environment     One of the most important roles of vitamin A is support of the
            every day and need vitamin A to deal with that  immune system. When vitamin A supplements or cod liver oil are
            contact. Many skin diseases are marked by the  given to populations with low vitamin A status, there is a reduction of

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