One last thing, the absorption efficiency of carotenoids decreases as the amount of dietary carotenoids increases.

最后一点是，类胡萝卜素的吸收效率随着饮食中类胡萝卜素摄入的升高而降低。

She says that yolk color is mainly caused by the carotenoids that chickens eat.

她说蛋黄的颜主要是由鸡吃的类胡萝卜素引起的。

Well those foods get their color from compounds called carotenoids and they are sometimes used as food coloring.

这些食物的颜一种叫做类胡萝卜素的化合物，它们有时被用作食用素。

Red and purple hues stem from secondary pigments called anthocyanins, while carotenoids and xanthophylls yield oranges and yellows, respectively.

红和紫调花青素等辅助素，而类胡萝卜素和黄素分别产生橙和黄。

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

β-胡萝卜之类的类胡萝卜素除了能转化为维生素 A 以外还有其它功能。

Their color, which actually ranges from red to purple, comes from pigments like carotenoids, which they use to capture light energy.

它们的颜，实红到紫不等，类胡萝卜素等素，它们用捕捉光能。

Carotenoids are a natural coloring in plants.

类胡萝卜素是植物中的天然素。

You might know this thanks to flamingos: They're born gray, but turn pink thanks to pigments called carotenoids in crustaceans they eat.

它们出生的时候是灰的，但是由于它们食用的甲壳纲动物体内叫做类胡萝卜素的东西变成了粉。

The algae produces pigment compounds called carotenoids that help it absorb sunlight, and also make it look reddish-pink.

藻类会产生称为类胡萝卜素的素化合物，帮助它吸收阳光，并使它看起呈红粉。

Carotenoids, along with polyphenols like EGCG in green tea, offer natural sun protection.

类胡萝卜素与绿茶中的 EGCG 等多酚一起提供天然防晒保护。

The yellow and orange stone fruits such as peaches are high in the carotenoids we turn into vitamin A and which are antioxidants.

黄和橙的核果类水果中类胡萝卜素含量很高，如桃子，这些类胡萝卜素会转变成维他命 A，具有抗氧化作用。

Carrots have other carotenoids, but for beta carotene, you'd actually absorb about 7 times more beta-carotene if you took it suspended in oil.

胡萝卜中还有其它类胡萝卜素，如果和油一同食用 β-胡萝卜素的吸收率可提高七倍。

Carotenoids and polyphenols accumulate in skin and absorb sunlight of various wavelengths, according to Farris.

Farris 表示， 类胡萝卜素和多酚会积聚在皮肤中并吸收各种波长的阳光。

Spoonbills are ingesting the carotenoid  a red pigment called canthaxanthin, which can be found in shrimp, crustaceans,   and algae.

琵鹭正在摄取类胡萝卜素，一种叫做角黄素的红素，存在于虾、甲壳类动物和藻类中。

While carotenoids are present in most green plants, they only become visible each fall when chlorophyll gets broken down to save energy for the winter.

然而，类胡萝卜素在大多数绿植物中都有，它们只有在绿素都分解掉之后才能看见而为度过冬天保存能量。

There are over 1,100 types of carotenoids, pigments which absorb high energy blue and green light, while leaving behind the lower energy red and yellow light.

有超过 1100 种类胡萝卜素，这是一种吸收高能量的蓝光和绿光，而留下低能量的红、黄光的素。

Those on short-term organic diets do show higher levels of carotenoids, polyphenols, Vitamin C and E, LDL cholesterol, antioxidant activity, immune system markers, and ever higher semen quality.

那些短期内食用有机食品的人确实体内含有更多的类胡萝卜素、多酚、维生素 C 和 E、低密度脂蛋白胆固醇、抗氧化活性、免疫系统标记，以及更高的精液质量。

Sweet potatoes and spinach are rich in beta carotene, another carotenoid that helps decrease redness in skin when it is exposed to UV light.

红薯和菠菜富含 β 胡萝卜素，这是另一种类胡萝卜素， 有助于减少暴露在紫外线下的皮肤发红。

So, it makes sense that this research from Ohio state found that avocado is a good way to help absorb carotenoids like beta-carotene and convert them to Vitamin A.

因此，俄亥俄州的这项研究发现言之有理，是说，牛油果有助于类胡萝卜素（如β-胡萝卜素）的吸收并将其转化为维生素 A。

This is because carrots don't contain Vitamin A but a carotenoid called beta carotene which is a “provitamin” — a substance that can be converted into a vitamin.

因为胡萝卜所含的并不是维生素 A，而是一种叫做β-胡萝卜素的类胡萝卜素，它是一种“维生素原”，一种可以转化成维生素的物质。