Summer is here and, although you may not be actually "dancin' in the streets" as famously proclaimed by the beloved Motown group Martha and the Vandellas, you will likely be spending much more time outside. One of the great benefits of our increased time outdoors is the biochemical activation of vitamin D synthesis triggered by exposure to ultraviolet rays in sunlight. Of course, in today's world, it's important to make sure we're not exposed to too much ultraviolet radiation. We need to balance the beneficial effects of vitamin D verses the harms of overexposure.
Vitamin D, also known as cholecalciferol, is a fat-soluble vitamin that is primarily obtained when our skin comes in contact with sunlight. The molecule thus synthesized is inert metabolically and is processed in the liver and kidney to yield the active form, 1,25-dihydroxycholecalciferol, otherwise known as active vitamin D3. Problematically, we are exposed to substantially less sunlight than were our evolutionary ancestors. Also, we now understand that overexposure to ultraviolet radiation can cause skin cancer, cataracts and other eye disorders, premature aging, and even suppression of the immune system. Therefore, we must obtain vitamin D supplementation from food sources such as eggs, tuna, salmon, cheese, and vitamin D-fortified foods including milk, yogurt, and orange juice.
As many school-age children are taught, we need vitamin D to build strong bones.1 Vitamin D helps absorb calcium from the gastrointestinal tract and helps osteoblasts (bone tissue) utilize the available calcium in the process of building robust Haversian systems (osteons), the fundamental building blocks of compact bone. Vitamin D may also have a role in immune system function and muscle activity. Vitamin D deficiency leads to rickets in children and osteomalacia in adults, both conditions involving the presence of soft, brittle bones, bone pain, and weakness. Vitamin D deficiency may also lead to osteoporosis, that is, overall reduced bone mass, resulting in an increased risk of hip fractures and fractures of other weight-bearing structures.2,3
Thus, obtaining our daily recommended dietary allowance (RDA) of vitamin D is necessary for ongoing good health. At present, evidence-based guidelines recommend 600 IU (international units) of vitamin D per day for children, teenagers, and adults up to age 70. Beyond age 70, guidelines recommend 800 IU per day. In addition to obtaining our daily RDA of vitamin D, regular vigorous exercise is needed to ensure there is a reason for your body to build strong bones. Our bodies operate on the principle of limited resources. Resources not required in one area will be used elsewhere, stored, or excreted. Regular vigorous exercise creates a demand for ever-stronger bones, and will cause your body to put your daily dose of vitamin D to good use.
Your daily dose of Vitamin D participates in a complex biochemical sequence of events leading to the construction of strong bones and teeth. In order to help achieve these important goals, the vitamin D molecule must be processed by the kidney and liver to yield a metabolically active form. Such processing depends on timely and accurate instructions received from the nerve system and feedback signals transmitted to the nerve system by the target organs.
Biomechanical integrity of the spine supports this series of events. As nerve interference will disrupt vitamin D metabolism and function, proper alignment of the spinal column is necessary to ensure appropriate functioning of the nerve system. Regular chiropractic care detects, analyzes, and corrects sources of nerve interference and thus is an essential part of effective utilization of vitamin D. Overall, regular chiropractic care is an important component of a complete program of health and wellness.
Finally, regular chiropractic care helps you obtain the greatest benefit from all your time and care involved in obtaining proper nutrition and sufficient exercise. By helping ensure healthy functioning of the nerve system, your body's master system, regular chiropractic care helps you maximize the benefits of all your lifestyle enhancements.
- Weaver CM: Nutrition and Bone Health. Oral Dis 2016 Jun 2. doi: 10.1111/odi.12515. [Epub ahead of print]
- Mousa A, et al: Vitamin D in Reproductive Health and Pregnancy. Semin Reprod Med 2016 May 26. [Epub ahead of print]
- Ivanova S, et al: Osteoporosis: Therapeutic Options. Folia Med (Plovdiv). 2016 Jul-Sep;57(3):181-90. doi: 10.1515/folmed-2015-0037.
Dr. Phil Afghani and Dr. Ashley Hughes are Chiropractors at our Port Orange Chiropractic office Atlantic Chiropractic and Wellness Center in Port Orange, FL. Our Port Orange office serves the chiropractic, prenatal care, massage therapy, nutrition, and natural healthcare needs of the communities of Port Orange, South Daytona, Daytona Beach, Holly Hill, Ormond Beach, Ponce Inlet, New Smyrna, Oak Hill, Edgewater, Bunnell, and Palm Coast. Our office can be reached at (386) 492-4881
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