Health & Wellness Menu

Health & Wellness
View Latest Posts
View Subscriptions
Posting Instructions

Active Bloggers

Will Moss Will Moss
Hampton University class of 1995
Kamal Imani Kamal Imani
class of
HBCU CONNECT HBCU CONNECT
Central State University class of 1995
Joel Savage Joel Savage
class of 1993
Dixie Somers Dixie Somers
Other College... class of 2004
Reggie Culpepper Reggie Culpepper
Clark Atlanta University class of 1998
Anica Oaks Anica Oaks
class of 2012
Beverly Johnson Beverly Johnson
class of

Vitamin D

Vitamin D
Posted By: Elynor Moss on March 08, 2019



Vitamin D has 2 main forms:

D2 ( ergocalciferol)

D3 ( cholecalciferol): The naturally occurring form and the form used for low-dose supplementation

Vitamin D3 is synthesized in skin by exposure to direct sunlight (ultraviolet B radiation) and obtained in the diet chiefly in fish liver oils and salt water fish (see Table: Sources, Functions, and Effects of Vitamins). In some developed countries, milk and other foods are fortified with vitamin D. Human **** milk is low in vitamin D, containing an average of only 10% of the amount in fortified cow’s milk.

Vitamin D levels may decrease with age because skin synthesis declines. Sunscreen use and dark skin pigmentation also reduce skin synthesis of vitamin D.

Vitamin D is a prohormone with several active metabolites that act as hormones. Vitamin D is metabolized by the liver to 25(OH)D, which is then converted by the kidneys to 1,25(OH)2D (1,25-dihydroxycholecalciferol, calcitriol, or active vitamin D hormone). 25(OH)D, the major circulating form, has some metabolic activity, but 1,25(OH)2D is the most metabolically active. The conversion to 1,25(OH)2D is regulated by its own concentration, parathyroid hormone (PTH), and serum concentrations of calcium and phosphate.

Vitamin D affects many organ systems (see Table: Actions of Vitamin D and Its Metabolites), but mainly it increases calcium and phosphate absorption from the intestine and promotes normal bone formation and mineralization.

Vitamin D and related analogs may be used to treat psoriasis, hypoparathyroidism, and renal osteodystrophy. Vitamin D's usefulness in preventing leukemia and ****, prostate, and colon cancers has not been proved, nor has its efficacy in treating various other nonskeletal disorders (1) or preventing falls (2,3,4) in the elderly. Whether vitamin D is useful in preventing fractures in the frail or healthy elderly is under study (5).


If you enjoyed this article, Join HBCU CONNECT today for similar content and opportunities via email!
Comments
Please Login To Post Comments...
Email:
Password:

 
More From This Author
Accept your invitation to become a new hire at an Employer in your field of expertise!
#FAMUConnect: Who do you know from FAMU? We introduce you to Mr. Shaun Watson
#HBCUEmployment: Opportunities are available! Seek a new career here...
Connect with the HBCUConnect representatives for help attaining a career in Healthcare, Education, and Technology
Careers for professional talented workers: applicants invited to apply to the following new employers
Working on attaining a new career requires options. Research the jobs on this list to see if you want to apply!
Latest Health & Wellness
The Fashion And Jokes The Coronavirus Came Along With

The Fashion And Jokes The Coronavirus Came Along With

Photo: A man in yellow protective fashion against the coronavirus in Kenya - Photo: Reuters The COVID 19 is a deadly virus that can't be underestimated but along the line, many have taken it very ...more
Joel Savage • 5 Views • October 25th, 2020
SIGMA GAMMA RHO SORORITY, INC. & SISTERS NETWORK® INC. PARTNER IN FIGHT AGAINST BREAST CANCER

SIGMA GAMMA RHO SORORITY, INC. & SISTERS NETWORK® INC. PARTNER IN FIGHT AGAINST BREAST CANCER

In recognition of October as National Breast Cancer Awareness Month, Sigma Gamma Rho Sorority, Inc. and Sisters Network® Inc., the only national African American breast cancer survivorship organizatio ...more
D. J. • 98 Views • October 6th, 2020
ORAL SEX, GOOD OR BAD FOR YOUR HEALTH?

ORAL SEX, GOOD OR BAD FOR YOUR HEALTH?

It’s the duty of every man (if he doesn’t want to be called selfish) to give his girlfriend or partner, the best sex or satisfaction, which her partner will be addicted to for the rest of her life, ma ...more
Joel Savage • 116 Views • October 4th, 2020
How to Handle Acne as a College Student

How to Handle Acne as a College Student

If you’ve suffered with acne in your teenage years, it’s not uncommon to expect your acne to dissipate as you enter your adult years. Unfortunately, adult acne numbers continue to rise. When you’re in ...more
Anica Oaks • 152 Views • September 30th, 2020
Life Insurance Phrase Book

Life Insurance Phrase Book

It can sometimes feel like there’s a life insurance language barrier. Words and ideas seem designed to confuse and trick you. But you might be surprised by how simple the concepts and terms actually a ...more
Felicia Bell • 205 Views • September 11th, 2020
Popular Health & Wellness
Get your free Caregiver Notebook.

Get your free Caregiver Notebook.

Keep track of the health information of the person in your care. Choose just the pages you need, or download all of them to create a complete Caregiver Notebook. ...more
Reggie Culpepper • 8,042 Views • April 4th, 2018
5 Common Reasons for Weight Gain

5 Common Reasons for Weight Gain

Weight gain catches many of us off guard (few people can recall the exact moment their jeans became too tight), but it does not “just happen.” Here are 5 common reasons unwanted pounds start appearing ...more
Reggie Culpepper • 7,050 Views • April 4th, 2018
Internationally Known Vegan Trainer Tay Sweat Among Experts To Greet Public At Health And Wellness Fair at TSU

Internationally Known Vegan Trainer Tay Sweat Among Experts To Greet Public At Health And Wellness Fair at TSU

Author: Michael McLendon Certified personal trainer and nutrition coach Tay Sweat knows what it means to fight for his life. At age 15, he weighed 311 pounds and found himself in a constant ba ...more
Elynor Moss • 6,446 Views • April 19th, 2018
Here's What's Cooking: BLACK BEAN CORN SALAD

Here's What's Cooking: BLACK BEAN CORN SALAD

12 Minutes 106 Calories 11 Ingredients 4 Servings Ingredients 1 cup frozen, whole-kernel corn 1/4 cup water 1/2 (15-oz) can low-sodium black beans, drained ...more
Elynor Moss • 5,580 Views • September 1st, 2018
Recipe for Any Day of the Week: Vegetable Fettuccine Primavera

Recipe for Any Day of the Week: Vegetable Fettuccine Primavera

40 Minutes 402 Calories 12 Ingredients 4 Servings Ingredients 4 cups or 1 recipe of Marinara Sauce 1 cup broccoli florets, sliced in half 1 cup thinly sliced zucc ...more
Elynor Moss • 5,515 Views • August 17th, 2018