S.H.
Per our Pediatrician:
For the 1st year of life, breastmilk/Formula is a baby's primary source of nutrition. NOT solids and not other liquids.
Solids, for the 1st year, is an 'introduction' to 'eating' and foods. Thus, they may or may not.... be having solids, 3 times a day. Usually, you start with 1 'meal' of solids a day... then, gradually work up to 3 'meals' of solids per day. Gradually. Over the course of the year. This is also to prevent constipation and/or allergic reactions, to foods not given before.
Per proteins/meats: per our Pediatrician... it was not recommended until 1 year old.
Too much protein for example, or too much concentrated protein... can overload the kidneys. For example.
Finger-foods.... should not be given, until a child has finger grasping fine-motor skills....
www.babycenter.com is a good site, for info on "solids" and feeding.