Trans-fatty oils should be avoided as much as possible. Most people will need to recalculate the grams and calories listed on food labels to fit their own servings sizes and calorie needs. Weighing and Measuring. Weighing and measuring food is extremely important in order to get the correct number of daily calories. Most foods and nutrients are measured in grams.
Food is weighed and measured after cooking it.
It is important to have a food scale along with measuring cups and spoons. Scales to measure grams can be found in gourmet stores and medical supply stores. After measuring all foods for a week or so, most people can make fairly accurate estimates without having to measure everything every time they eat. Being consistant in the timing of meals and snacks are vital to success. Typically, insulin-dependant people in the 100 to 200 range should eat about 30 minutes after taking an insulin injection, and an hour if over 300.