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

她说蛋黄的颜色主要是由鸡吃的类素引起的。

Roasting pumpkins, carrots and sweet potatoes increases available carotenoids.

烤南瓜、烤和烤红薯可以增加可用的类素。

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

最后点是，类素的吸收效率随着饮食中类素摄入的升高而降低。

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

β-之类的类素除了能转化为维生素 A 以外还有其它功能。

Carotenoids are a natural coloring in plants.

类素是植中的天然色素。

Some of these carotenoids are put into feathers.

些类素被放入羽毛中。

Carotenoids are the pigments responsible for yellow, orange, and red tones.

类素是产生黄色、橙色和红色色调的色素。

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

类素与绿茶中的 EGCG 等起提供天然防晒保护。

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

Farris 表示， 类素和会积聚在皮肤中并吸收各种波长的阳光。

Interesting side fact: Parrots, probably the colorful stereotype don't use carotenoids even though they do consume them.

有趣的附带事实：鹦鹉，可能是五颜六色的刻板印象，即使它们确实食用类素，也不使用类素。

Animals can't produce carotenoids themselves and need to get them through their food like berries, fruits, or shrimp.

动不能自己产生类素，需要通过食（如浆果、水果或虾）来获取。

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

藻类会产生称为类素的色素化合，帮助它吸收阳光，并使它看起来呈红粉色。

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

黄色和橙色的核果类水果中类素含量很高，如桃子，这些类素会转变成维他命 A，具有抗氧化作用。

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色的，但是由于它们食用的甲壳纲动体内叫做类素的东西变成了粉色。

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

琵鹭正在摄取类素，种叫做角黄素的红色素，存在于虾、甲壳类动和藻类中。

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.

中还有其它类素，如果和油同食用 β-素的吸收率可提高七倍。

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，类素在大数绿色植中都有，它们只有在叶绿素都分解掉之后才能看见从而为度过冬天保存能量。

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.

因为所含的并不是维生素 A，而是种叫做β-素的类素，它是种“维生素原”，种可以转化成维生素的质。

The cardinal's bright red comes from carotenoids, the same pigments that make carrots orange, while the black of its face is from melanin, the pigment that colors our hair and skin.

比如它们身上的鲜红色来自类素，类素可以让呈橘色，在比如它们脸上的黑色来自黑色素，我们的头发和皮肤中就有黑色素。

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的类素、、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。