No matter where you are, 营养 (nutrition) is key.  It can be the deciding factor in lowering your 胆固醇 (cholesterol) and preventing further buildup in your 血管 (blood vessels).  Although there are people in the states who outright condemn 碳水化合物 (carbohydrates), there are plenty of places in the world where they’re the staple of the diet, leaving 蛋白质 (protein) and 脂肪 (fat) as secondary things.  One overlooked part of nutrition is 纤维素 (fiber), as it can aid with 消化 (digestion).  I think that trying to maintain a constant  比例 (ratio) of the different macronutrients works best, although it can be tough to stay on top of that sometimes.  There’s an old Chinese saying which says 早上吃得饱, 中午吃得好, 晚上吃得少.  (In the morning, eat until you’re full, midday eat a good meal, at night only eat a little bit.)

营养 ying2yang3 – nutrition
胆固醇 dan3gu4chun2 – cholesterol
血管 xue2(3)guan3 – blood vessels
碳水化合物 tan4shui3hua4he2wu4 – carbohydrates
蛋白质 dan4bai2zhi4 – protein
脂肪 zhi3fang2 – fat
纤维素 xian1wei2su4 – fiber
消化 xiao1hua4 – digest(ion)
比例 bi3li4 – ratio
早上吃得饱, 中午吃得好, 晚上吃得少  zao3shang4chi1de bao3, zhong1wu2chi1de hao3, wan3shang4chi1de shao3. In the morning, eat until you’re full, midday eat a good meal, at night only eat a little bit.