Vitamin D – natural Source
During the bleak winter months of short days and cloudy skies, many people may seek out the benefits of sunshine in bottle form and reach for supplements of vitamin D. Made naturally by the skin when exposed to sunlight, this vitamin is needed to maintain healthy bones, teeth and muscles and to prevent them from becoming brittle and at risk of fracture.
In spring and summer in the far regions of the Northern and Southern Hemispheres, such as the northern US and New Zealand, people tend to produce enough vitamin D through sunlight on their skin and foods in their diet. The vitamin helps the body absorb calcium to promote bone growth.
But during autumn and winter, levels drop. It helps to eat the right foods, such as oily fish, egg yolks, red meat and liver, to keep levels high inside the body -- which not everyone can achieve adequately. Fortified foods, including milk, cereals and spreads, provide the most vitamin D in the American diet, according to the National Institutes of Health.
Available at: https://edition.cnn.com/2016/11/23/health/vitamin-d-supplements-winter/index.html. Accessed on April, 13th 2018. Adapted.
Based on the text, there are the following statements:
I. Lots of people look for the benefits of sunshine in capsules in order to have supplements of vitamin D during the hard winter.
II. During fall and winter levels of vitamin D drop, so it helps to eat fortified foods to maintain levels high inside.
III. Vitamin D prevents the body from being healthy and absorbing calcium to promote bone growth.
It’s correct only what’s affirmed in: