Between the ages of 6 to 12 months is an important growing time for babies and food intake should be monitored. Even the smallest baby can under- or over-eat. Your doctor or clinic nurse can tell you the ideal weight and food amounts for your baby as bone structure and body types can differ significantly.
Nutrition:
Nutrition is all important especially during the first year of life, and good nutrition means baby getting the right amount of calories, protein, fat, vitamins, and minerals. Making sure your baby has right kind and the right amount of good nutrition will protect baby against diseases and make sure good health and good growth are continuous and in line with guidelines.

Every infant is different. Your baby may need more or less of the items in each food group or may also need a special diet. Check these things with your doctor or paediatrician and ask for a chart to help you monitor diet and recommended amounts at home. You may find it helpful to take a written list of things to check when you visit your doctor and paediatrician.
Liquids:
Most infants will get the liquids they need from breast milk or from formula or juices. In hot climates though, the 6-12 months old infant may need an extra ½ to 1 cup of boiled and cooled water per day to make up losses.
Health & Diet:
Your baby's kidneys cannot handle high protein and mineral content well until they reach around 1-year in age. And only give tiny amounts to start and introduce them gradually.

At 6 months old, you can introduce rice infant cereal into baby's diet at around ¼ to ½ cup to start, given once a day. Other cereal grains such as wheat, barley, and oats can also be gradually introduced also in ¼ cup portions after 6 months of age.

Between 7-9 months, one or two ½ cup servings of mashed potatoes, pasta, rice, breads, crackers, toast, rolls, or soft muffins can be given. Always monitor baby when feeding especially with dry foods - to avoid choking.

Between 7-12 months mashed soft fruit including banana, but not strawberries or raw tomatoes, can be added to baby's diet, also cooked and pureed meats, poultry, eggs, and mashed beans. At 9 months old baby should tolerate a little cottage or soft mild cheese as well as scrupulously-checked bone-free fish.
Supplements:
Do not administer supplements without checking with your doctor. Do not give baby any vitamins or supplements passed to you by any other person except your caregiver, they may be harmful to your baby.

Introduce only one new food at a time and only once every 2-3 days, so you can tell if baby is digesting each one well. When trying new foods that are dry or chewy, watch your infant closely to make sure they don't choke.

If you are vegan (strict vegetarian) and breast feeding check with your doctor or clinic if your baby needs to take vitamin B12.