人如其食
As the well-known saying goes, “You are what you eat.”
如同著名的諺語所說，「人如其食」。
saying(n.)諺語、格言
People’s health is dependent upon their daily dietary choices.
人們的健康取決於平日的飲食選擇。
be dependent on(upon)取決於⋯的、依賴的
In an age of improved living standards, it comes as no surprise that modern people are preoccupied with what the best diet for humans is.
在生活水準不斷提高的時代，現代人十分關注什麼是對人類最好的飲食方式，這一點都不讓人驚訝。
living standard生活水準come as no surprise不令人驚訝、預料之中preoccupy(v.)使全神貫注、使關注
Therefore, several dietary regimens have emerged, such as the Paleolithic diet, ketogenic diet, carnivore diet, and vegan diet, to name but a few.
因此出現數種飲食養生之道，像是原始人飲食法、生酮飲食、全肉飲食、純素飲食等，僅略舉幾例。
regimen(n.)養生之道、生活規則paleolith(n.)舊石器，paleolithic(adj.)舊石器時代的ketogenic diet生酮飲食carnivore(n.)食肉動物vegan(n.)嚴守素食主義的人，veganism(n.)純素主義to name but a few僅略舉幾例
Presented with such a staggering number of dietary plans, one must realize that there is no universal answer to the question of what people should eat.
面對這些數量驚人的飲食計畫，人們必須了解，應該吃什麼的這個問題，並沒有通用答案。
staggering(adj.)令人震驚的、巨大的universal(adj.)通用的、普遍的，universal health care全民健保
Just as a life-saving medicine may be another’s life-threatening poison, there is almost no possibility that one diet will suit everyone.
就像某人的救命藥方可能是危及他人生命的毒藥一樣，單一飲食方法幾乎不可能適合所有人。
life-saving(adj.)拯救性命的life-threatening(adj.)危及性命的
In other words, individual development determines whether certain foods are healthy for one person and unhealthy for another.
換句話說，個體發展決定了是否某些食物對一個人健康，而對另一人不健康。
in other words換句話說、也就是說
For instance, individuals’ biological sex and age can affect the food that is best for them.
例如，個人的生理性別和年紀會影響最適合他們的食物。
affect(v.)影響，affect sth.=have an effect on sth.
Culture can also have an impact on people’s optimal diets, which are often determined by the natural environment they reside in.
文化也會對人們最佳飲食的選擇造成影響，這通常取決於他們所居住的自然環境。
have an impact on sth.=impact on sth.對⋯產生影響optimal(adj.)最理想的=optimumreside(v.)居住=live=dwell
Over time, the cultural differences may be reflected in the genetic level, resulting in certain peoples’ preferences for particular foods.
隨著時間的改變，文化差異可能會反映在基因層面上，導致某些民族對特定食物的偏好。
genetic(adj.)基因的、遺傳的，genetic defect基因缺陷，genetic disease遺傳疾病