Research is indeed a funny old world. Like statistics. I still think it is cr*p though that baby food is so sweet. I've nothing against jars and pouches, but coming from a family with diabetes on both sides, and personally suffering from insulin resistance I'm going to err on the side of obsessive caution and feed the tiddler boring old tasteless muck made by me.... and she will enjoy it!!! This mood may not last, but having just had a very positive reaction to some avocado mush I'd say I might be onto something. Give me a week 
Plonky just gone up a teat size, which may be part of the issue. She's probably just adjusting. Lunch time was better, which cheered me up.
Stormy as for what food is good, well the answer to that is anything natural that you'd eat yourself, avoiding processed foods, and anything with added salt. People have different views on when to introduce things, but the guide I have suggests:
6-7 months, all food cooked and pureed:
cereals - baby rice only at first
Veg - carrots first, then other root veg, green veg such as courgettes, beans, peas, brocolli, fruit veg such as tomatoes
Fruit - cooked apples and pears first, then move on to a wider range. Acidic fruitss such as oranges and pineapples should be avoided in early stage
eggs - leave until after 8 months (some say 12 months)
White meats without skin - chicken turkey
Red meats without fat - beef veal lamb offal
Dairy avoid until later, although yoghurt can be tolerated
Fish - not yet
Finger foods - raw or cooked apple, carrots, fingers of baked bread
Obviously that is a fairly old fashioned conservative guide, but it is quite a handy crib sheet
Leni and Stormy good luck with the fitness drive. My tuppence worth.... eat lunch!!! If you don't you'll feel lethargic so won't be as active, will slow your metabolism down, and will tend to eat larger portions later or snack more. Well that's what the books say anyway.