Step #1 Make good yogurt and eat it.
1. Go buy a quart of milk, full fat. 2. Buy some yogurt culture. Bulgarian preferred. 3. Follow the directions. You need to keep the temp at around 110F, warm water bath, heating pad, hot water bottles, put it in a cooler, whatever.
This is one of the best foods there is.
Step 2. Go to your grocery store or stores and try to find some yogurt that is as good.
You can repeat these steps for other foods. Coffee - roast your own. Cheese. Just go to a gourmet cheese store. Get something that does not come in a plastic bag.
Or go to Europe and try real croissants. Everyone in Paris can get real croissants almost anywhere every day. And not to mention real bread - again the plastic bag.
We are so used to what is available here that we have come believe it is "food" when really it is just adulterated to have a long shelf life. Sorry, but really just try it.