Another kind of treatment involves retinoids, which are compounds related to vitamin A.

另一种药物是类A，是A化合物。

They have betacarotene, which is an important part of the vitamin A pathway.

它们含有β胡萝卜，这是 A 途径重要组成部分。

Butter also has some essential vitamins and minerals such as vitamin A and E.

黄油还含有一些必要和矿物质，如A和E。

But When they gave high vitamin D and normal vitamin A, they got hypervitaminosis D.

但是当给予火鸡大剂量 D 和正常量 A 时，他们则会出现D过多症。

One group of mice received a large amount of vitamin C. A second group did not.

一组老鼠注了大量c，第二组则没有。

The main nutrients that are recommended are vitamin A, vitamin C, vitamin E, lutetium, and zeaxanthin.

推荐主要营养是 A、 C、 E、和玉米黄质。

Milk is nutritious, it contains vitamins A and D as well as protein and isn't full of calories.

牛奶很有营养，它富含A和D以及蛋白质，而且不含热量。

Dandelions are a great source of vitamin K and also are a good source of vitamins A and C.

蒲公英是K重要来源，也是A和C主要来源。

“If you eat just one carrot every day, that provides all the Vitamin A you need to survive.”

如果你每天吃一根胡萝卜，就能提供人体必需A。

Vitamin A is a fat soluble vitamin, you need fat to absorb and assimilate it properly.

因为 A 是一种脂溶性，需要油脂帮助才能被人体正常吸收。

Carotenoids like beta-carotene have their own functions other than just conversion to Vitamin A.

β-胡萝卜之类类胡萝卜除了能转化为 A 以外还有其它功能。

Then, one might be providing Vitamin A as beta carotene where another provides it as retinyl palmitate and so on.

同时，有产品当中 A 是β-胡萝卜，而另一些则是视黄醇棕榈酸酯，等等。

Stuff like amino acids, vitamins, a few minerals.

诸如氨基酸、和一些矿物质之类东西。

Too much vitamin A can be harmful in pregnancy.

过多 A 在怀孕期间可能有害。

But for someone high in vitamin A, juicing could be disastrous.

但对于 A 含量高人来说，榨汁可能是灾难性。

500,000 children go blind every year because of lack of Vitamin A.

每年有 50 万儿童因缺乏 A 而失明。

And studies suggest grass-fed butter has better Vitamin A and E content, higher omega-3s, and higher levels of the antioxidant glutathione.

研究表明，草食黄油具有更好 A 和 E 含量，更高 ω-3 脂肪酸和更高水平抗氧化剂谷胱甘肽。

Yeah, vitamin A and C, but no K.

没错 " A" 和" C" 但没有" K" 那就是你妈妈为什么病。

These include use of vitamin A supplements in treatment and detailed suggestions for treating babies under the age of six months.

包括治疗中使用A补充剂，以及为6个月以下婴儿提供治疗详细建议。

High in vitamin A, vitamin C and potassium, sweet potatoes can add fiber and other nutrients to a warm winter meal.

薯富含 A、 C 和钾元，可以为温暖冬季膳食增添纤和其他营养。