俗话说：病从口入,.有些学生不注意饮食习惯,结果生病了.请你写80字左右的英语作文……

It's never too late to change your habits, and by establishing a healthy
lifestyle now, you'll continue to reap the rewards in the future.
Discover the facts behind nutrition so you can make informed choices,
understand how BMI, or body mass index, affects you, or take part in our
six-week diet and exercise programme.
Sometimes it can feel as though eating a healthy diet, getting enough exercise
and finding the time to find yourself is impossible. But learning to
live a healthier lifestyle is easy when you change one small thing at a
time.
Eating a healthy diet is another part of the healthy lifestyle. Not only can a clean diet help with weight management, it can also improve your health and quality of life as you get older. You can use computer to determine how many calories you need and what food groups you should
focus on or, if you're looking for smaller changes, you can use these
tips for simple ways to change how you eat:
Eat more fruit. Add it to your cereal, your salads or even your dinners
Sneak in more veggies. Add them wherever you can--a
tomato on your sandwich, peppers on your pizza, or extra veggies in your
pasta sauce. Keep pre-cut or canned/frozen veggies ready for quick
snacks.
Switch your salad dressing. If you eat full-fat dressing, switch to something lighter and you'll automatically eat less calories.
Eat low-fat or fat-free dairy. Switching to skim milk
or fat free yogurt is another simple way to eat less calories without
having to change too much in your diet.
Make some substitutes. Look through your cabinets or
fridge and pick 3 foods you eat every day. Write down the nutritional
content and, the next time you're at the store, find lower-calorie
substitutes for just those 3 items.