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  2. Health effects of sunlight exposure - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_sunlight...

    [43] [failed verification] UVC is the highest-energy, most-dangerous type of ultraviolet radiation, and causes adverse effects that can variously be mutagenic or carcinogenic. [44] Despite the importance of the sun to vitamin D synthesis, it is prudent to limit the exposure of skin to UV radiation from sunlight [45] and from tanning beds. [46]

  3. Cholecalciferol - Wikipedia

    en.wikipedia.org/wiki/Cholecalciferol

    Cholesterol is extracted from wool grease and wool wax alcohols obtained from the cleaning of wool after shearing. The cholesterol undergoes a four-step process to make 7-dehydrocholesterol, the same compound that is produced in the skin of animals. The 7-dehydrocholesterol is then irradiated with ultraviolet light.

  4. Cholesterol - Wikipedia

    en.wikipedia.org/wiki/Cholesterol

    Cholesterol is the principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils. [3] [4]Cholesterol is biosynthesized by all animal cells [citation needed] and is an essential structural and signaling component of animal cell membranes.

  5. Lipid metabolism - Wikipedia

    en.wikipedia.org/wiki/Lipid_metabolism

    Lipid metabolism is the synthesis and degradation of lipids in cells, involving the breakdown and storage of fats for energy and the synthesis of structural and functional lipids, such as those involved in the construction of cell membranes. In animals, these fats are obtained from food and are synthesized by the liver. [1]

  6. 7-Dehydrocholesterol - Wikipedia

    en.wikipedia.org/wiki/7-Dehydrocholesterol

    7-Dehydrocholesterol (7-DHC) is a zoosterol that functions in the serum as a cholesterol precursor, and is photochemically converted to vitamin D 3 in the skin, therefore functioning as provitamin-D 3. The presence of this compound in human skin enables humans to manufacture vitamin D 3 (cholecalciferol).

  7. 6 Myths About High Cholesterol Dietitians Want You to Stop ...

    www.aol.com/6-myths-high-cholesterol-dietitians...

    High cholesterol is more common than you think, but managing it starts with separating fact from fiction. Focus on increasing your fiber intake, adding heart-healthy fats and getting regular ...

  8. Lipid - Wikipedia

    en.wikipedia.org/wiki/Lipid

    Hence the citric acid cycle can start at acetyl-CoA when fat is being broken down for energy if there is little or no glucose available. The energy yield of the complete oxidation of the fatty acid palmitate is 106 ATP. [2]: 625–6 Unsaturated and odd-chain fatty acids require additional enzymatic steps for degradation.

  9. Sterol - Wikipedia

    en.wikipedia.org/wiki/Sterol

    [2] [3] The most familiar type of animal sterol is cholesterol, which is vital to the structure of the cell membrane, and functions as a precursor to fat-soluble vitamins and steroid hormones. While technically alcohols, sterols are classified by biochemists as lipids (fats in the broader sense of the term).

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