Dark skinned people, older individuals and those who are overweight or obese; tend to have much lower levels of vitamin D in their body.
Vitamin D is a group of fat-soluble secosteroids, the two major physiologically relevant forms of which are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Vitamin D without a subscript refers to either D2 or D3 or both.
There are two basic types of vitamin D. Ergosterol is the basic building block of vitamin D in plants. Cholesterol is the basic building block of vitamin D in humans. When ultraviolet light from the sun hits the leaf of a plant, ergosterol is converted into ergocalciferol, or vitamin D2. In just the same way, when ultraviolet light hits the cells of our skin, one form of cholesterol found in our skin cells-called 7-dehydrocholesterol-can be converted into cholecalciferol, a form of vitamin D3.
In the life of a plant, the ergocalciferol form of vitamin D2 serves to accomplish most of the desired purposes that were intended for this substance. In the life of a human, however, cholecalciferol is not the final intended form for this vitamin. In order for our bodies to come up with the fully active form of vitamin D3, further metabolism is required.
Here's an easy way to cut a head of cauliflower into neat florets.Start by pulling off and discarding the outer leaves .
1.Turn the cauliflower on its side and cut off the stem near the base of the head with a chef's knife.
2.Turn the cauliflower so the stem end is facing up. Using a small chef's knife or large paring knife or large paring knife, cut around the core to remove it.
3.Seperate the individual florets from the inner stem using the tip of a chef's knife.Cut the florets in half or in quarters, as necessary, to yield pieces of the desired size.
Instead of buying foods that come in extensive packaging (most of which is petroleum-based plastics) look for unpackaged or minimally packaged foods, experiment with bringing your own containers and buying in bulk, or pick brands that use bio-based plastic packing. And of course try and recycle or reuse any packaging you end up with.
The irate customer calling our newspaper offices loudly demanded to know why her Sunday edition was not delivered to her.
“Ma’am,” I interrupted, “today is Saturday. The Sunday paper is not delivered until Sunday.”
There was a pause on the other end of the phone, followed by a ray of recognition. “So that’s why no one was in church today.”
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