When Vitamin C is taken, it is broken down into dehydroascorbic acid (DHAA).

服用维生素 C 时，它会分解成脱氢抗坏血酸（DHAA）。

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It has lots of vitamin c, carotenoids, vitamin K and folic acid.

花椰菜中富含维生素c、类胡萝卜素、叶酸。

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Vitamin c, which is also known as ascorbic acid, is one of the most powerful anti-oxidants.

维他命c，也叫抗坏血酸，就是最好的抗氧化剂之一。

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So I show that here, so in green, you have what's called a carboxcylic acid group, a c o o h, which gets converted by s o c l 2 to a c double bond o c l or an acid chloride.

我在这里用绿色表示，我们所说的羧酸族化合物，碳，氧，氧，氢，它被亚硫酰氯转化为,一个碳氧双键与碳氯单键组成的酰氯。

麻省理工公开课 - 化学原理课程节选

Taking them with juice is a better idea, as the acid and vitamin C in juice may help with the absorption.

CNN: Are vitamins and supplements effectively absorbed?

"It's not as aggressive a procedure" as traditional surgery but it isn't as effective based on patient satisfaction and elimination of acid in the esophagus, says Hiran C.

WSJ: New Surgical Option for Heartburn

However, exercise had a much greater effect on animals that were also given the supplement amino acid L-argenine, and antioxidant vitamins C and E.

BBC: Exercise is good for health