I don't understand why the doctor would say less formula(?breastmilk?) and more non-milk feeds?
NOTHING is as calorie, fat, and nutrient dense as breastmilk/formula. At 1 year no more than 25% of a babies caloric needs should come from non-milk feeds.
Also between 6-12 months taking less than 20oz per day is considered a concern.
Keep in mind your doctor is NOT a nutritionist. If you want better nutritional advice I would consult someone with some actual training in infant nutrition -which does not include most doctors or pediatricians.
http://kellymom.com/nutrition/solids/solids-how.html
Watch baby's cues - this is particularly easy if baby nurses beforehand and most/all of the solids are offered to baby to self-feed. Increase solids gradually if baby is interested. Aim for baby getting no more than 25% of her calories from solids by the age of 12 months (some babies eat less than this at 12 months and that's also normal).
http://www.kellymom.com/bf/bfextended/ebf-benefits.html
* It's not uncommon for weaning to be recommended for toddlers who are eating few solids. However, this recommendation is not supported by research. According to Sally Kneidel in "Nursing Beyond One Year" (New Beginnings, Vol. 6 No. 4, July-August 1990, pp. 99-103.):
Some doctors may feel that nursing will interfere with a child's appetite for other foods. Yet there has been no documentation that nursing children are more likely than weaned children to refuse supplementary foods. In fact, most researchers in Third World countries, where a malnourished toddler's appetite may be of critical importance, recommend continued nursing for even the severely malnourished (Briend et al, 1988; Rhode, 1988; Shattock and Stephens, 1975; Whitehead, 1985). Most suggest helping the malnourished older nursing child not by weaning but by supplementing the mother's diet to improve the nutritional quality of her milk (Ahn and MacLean. 1980; Jelliffe and Jelliffe, 1978) and by offering the child more varied and more palatable foods to improve his or her appetite (Rohde, 1988; Tangermann, 1988; Underwood, 1985).
http://www.kellymom.com/babyconcerns/growth/weight-gain_increase.html
There are several simple things that have been proven to help with weight gain:
* Stop or decrease solid foods, particularly if baby is younger than 6 months. Most solids foods have fewer calories and nutrients than breastmilk, plus they tend to replace (rather than add to) the higher-calorie, more nutritious breastmilk.
* Sleep with your baby (this increases prolactin and frequency of nursing).
* Learn baby massage -- this has been proven to improve digestion and weight gain.
* Carry baby throughout the day in a carrier/sling; get as much skin to skin contact as you can. Both of these things have been shown to improve weight gain.
* Nurse often - at least every 2 hours during the day and at least once at night. Frequent nursing increases baby's milk intake.
* Make sure you're allowing your baby to completely finish one side before you offer the other by waiting upon her cues that she is finished; i.e. pulling off herself and looking satisfied, going to sleep, changing from an active suck/swallow to more of a pacifier suck, etc. Always OFFER the second side, but don't worry if she doesn't seem to need it. It's much more important that she be allowed to completely finish one side than that she nurse both sides. By doing so she will be assured of reaching enough of the richer, more caloric hindmilk that helps her to go longer between feedings.
* Use breast massage and breast compression during nursing.
* Pump or hand express for a couple of minutes before nursing. This will remove some of the foremilk so that your baby receives more of the richer, higher calorie hindmilk.
* If supplements are medically indicated, breastmilk is preferred over formula as a supplement (exceptions to this are rare), and the average fat/calorie content of mom's milk is higher than that of formula. Mom can pump for 5-10 minutes after nursing (don't interrupt or shorten the nursing session to do this), and offer this higher-fat hindmilk to baby as needed. This is also an option for moms who normally offer expressed milk when they are separated from baby.
See also What affects the amount of fat or calories in mom's milk?
http://www.drgreene.org/body.cfm?id=21&action=detail&ref=857
A baby can have up to 32 ounces of formula per day. In addition, he can have as much in the way of solids, water, or juice as he wants to supplement this. The mealtime formula is usually given at the end of the meals, to top off the solids in a comfortable and easy way. Even though the solids are now playing a larger role, the breast milk or formula still provides the core of the nutritional needs. If a baby begins to regularly take less than about 20 ounces per day, you might want to offer the bottle first and then solids.
http://askdrsears.com/html/0/T000100.asp#T031014
I've been feeding my baby iron-fortified formula. When is it okay to switch to whole cow's milk? Research comparing cow's milk and formula-fed infants during the first year of life has shown that cow's milk is irritating to the intestines of a tiny infant, causing infants to lose a tiny bit of blood in their stools, contributing to iron deficiency anemia. There is very little iron in cow's milk anyway, and the iron that is there is poorly absorbed. Concern about iron-deficiency anemia has led the American Academy of Pediatrics, backed by solid research, to discourage the use of cow's milk in children under one year of age. One of America's top pediatric hematologists (blood specialist), the late Dr. Frank Oski , Professor and Chairman of the Department of Pediatrics at Johns Hopkin University (and co-author of a book entitled: Don't Drink Your Milk) advised parents to be cautious and not rush into the use of cow's milk, even during the second year of life. At present it would seem prudent to continue giving your baby iron-fortified formula during the second year of life and very gradually wean him to dairy products, beginning with yogurt. If your toddler generally has a balanced diet and routine hemoglobin tests show that he is not even close to being anemic, then switch from formula to whole milk sometime during the second year, but don't be in a hurry.