The important part is keeping the portions within reasonable limits and the calories at a satisfactory number to sustain you working as a human being.
]The most important food group, because it is where most of our energy (aka calories) come from, is the bread and grains group. It is recommended that six to eight servings from this group is eaten daily. More servings are for those who expend a large amount of energy, such as athletes, those who work out, growing children, and people with labourious occupations. Breads and grains contain many carbohydrates, which are made of good sugars that can be stored as energy.
We hope that the discussion and in this book will help the readers to understand and learn about the different aspects of "Achieving Nutritional Goals" in a most comprehensive way.