Vitamins are a heterogeneous group of organic substances that are present in our natural foods, that are of very high biological potency and that are required in extremely small concentrations for growth and maintenance of normal cells and body function. They need to be supplied in the diet, bec...
relatively small quantities are needed to complete their functions. In general these functions are of a catalytic or regulatory nature,facilitatingor controlling vital chemical reactions in the body’s cells. If a vitamin is absent from the diet or is not properly absorbed by the body, a ...
Vitamin A is an essential nutrient that supports skin, eye, and reproductive health, and immune function. Vitamin A is in a variety of foods that you can eat each day. By eating these foods, you can have a healthier body to prevent weak bones, poor vision, or frequent illnesses....
18. Enough vitamin C can make brain function agile, acumen, can raise intelligence quotient. 充足的维生素c可使大脑功能灵活、敏锐,并能提高智商。 19. The study aimed to observe effects of different vitamin A supplements on the semen quality of boar. ...
摘要: Vitamin A(VA) is a fat-soluble vitamin necessary for human beings and animals.The profile and physiological function of Vitamin A,together with symptoms caused by lack or excess intake of it,are mainly described to suggest that excess intake will harm the body.关键词:...
Vitamin D is a ___by the body after exposure to sunshine.相关知识点: 试题来源: 解析 根据句意,维生素D暴露在阳光下后被身体吸收。结合首字母,考虑absorb"吸收",与Vitamin D是动宾关系,要用一般现在时的被动语态。故填:absorbed。反馈 收藏
Vitamin A, commonly referred to as retinol, a fat soluble vitamin is an important nutrient involved in multiple functions within the human body which inclu... M Manasiya,S Sawarkar,A Bajaj - 《Indian Drugs》 被引量: 0发表: 2019年 Vitamin A and retinoid signaling genomic and nongenomic effe...
but many vegetables and fruits contain one or more of a class of pigments that can be converted to vitamin A in the body; of these pigments, beta-carotene(provitamin A) is an excellent source of vitamin activity. The existence of vitamin A was first clearly recognized in 1913, its chemical...
(SMM), where VDD can contribute to the reduction of muscle mass as well as decreased strength and muscle function, leading to sarcopenia [19]. Understanding these aspects is essential for a comprehensive assessment of the influence of vitamin D on body composition and muscle health in women of...
Vitamin C is needed for the body to develop and function properly. It plays an important role in immune function. Most experts recommend getting vitamin C from the diet rather than taking supplements. Fresh oranges and fresh-squeezed orange juice are good sources. Historically, vitamin C was ...