Become familiar with recommended caloric guidelines.
Set a goal to eat more fruits and vegetables.
Explanation: To prevent chronic illness through proper nutrition, Mason will need to seek professional help that will list guidelines for how he should eat. Mason should familiarize himself with the recommended calorie guidelines because he will be able to eat properly to achieve his goal. In addition, Mason should eat lots of fruits and vegetables that will provide many nutrients and vitamins needed for your health. Mason should also avoid sugary foods with high amounts of salt and trans and saturated fats.
Answer:
The answer is 141.66 grams per each meal
Explanation:
Calories is nothing but the unit of energy which people consume through the food and drink and they use this energy while doing physical activities. Taking right amount of calories are essential for human health.
Given -
Average calorie intake for men is 2550 cal
1 gram of food contains 6 kcal
So therefore 
so 425 gram of food will contain 2550 cal
It is also given that there are 3 meals per day, so we will divide 425 gram of foods in to 3 equal meals

Therefore each meal would have 141.66 grams.
3.4 miles for thirty minutes
6.1 miles for one hour