How much time (spent unable to carry on with life as normal), money and energy (in terms of overall energy required to produce food) do we stand to save if we stop eating processed and unhealthy foods and pursue healthy and organic eating habits?

I'm going to suggest that we would lose about 50% of the labor force.   Society worked on a level where people made everything 'from scratch' at a time when it kept 50% of the population (female) at home to do that kind of work. If we got rid of processed foods and put the burden of that level of prep on the family, we'd need a family member (of either gender) to stay home and do that labor.   I'm going to use a single meal to demonstrate. We're going to have spagetti with meat sauce.   We're going to start in the morning because the tomato sauce is going to need to simmer for a while. Now, I didn't spend long looking, and the first recipe I found calls for 4 hours of simmering time, but it also uses canned tomato paste.... so we may need to adjust up the total time by however long it takes to make tomato paste (http://allrecipes.com/recipe/homemade-tomato-sauce-i/)   Once we have our tomato sauce simmering away on the stove, we can move on to the garlic bread. That's going to take a while to get the dough together, kneeded, and rising, so we'll want to make sure to do that plenty early as well.   Once the bread is rising, and the tomato sauce is simmering, I can get on to making sausage. Fortunately, since I'm making a meat sauce or even if I wanted meat balls, I don't need to put my sausage into a casing, but I still have to power up the grinder and feed through a few choice cuts of meat ensuring I get the right amount of fat in there, and my seasonings as well.   So, now I have bread dough, a red sauce, and some sausage... what's next? Noodles. Time to make another dough, and in this case, likely feed it through an extruder (http://www.food.com/recipe/perfect-homemade-pasta-or-spaghetti-for-kitchenaid-mixers-288125) What's another 2 hours of my time, right? Hey, at least I have one of those kitchenaide industrial strength mixers with all the attachments to make this easy right? Imagine if I didn't or couldn't afford $1000 worth of kitchen hardware for this process....   Now that all of those tasks are done, I can actually start baking my bread and turning the fresh loaves into garlic bread.... oh, wait.... butter. Going to need to make butter. At least that's quick, only another 10 or so minutes.... I can do that while the loaves bake (http://allrecipes.com/recipe/homemade-butter-2/)   Okay, so I have garlic bread, I've been able to brown my homemade sausage and add it to the tomato sauce that was made with fresh tomatoes, and I have time to boil my fresh spagetti noodles.... Even by overlapping the active time with inactive time all over this process, that spagetti dinner easily consumed an 8 hour day. Oh, wait... we made a ton of dishes dirty in that process... mixing bowels, the food processor, the meat grinder, all of the attachments for my kitchenaid... I've got a full load of dishes to do here and some tools that are going to need hand washing.... more time....   Don't get me wrong, I like cooking fresh. 5 months out of the year, I source my produce directly from my own garden, and I like working from fresh food, but make no mistake, doing so is a luxury in time. If every family had to do this all the time....

Overall as a species, we'd spend an awful lot more energy with organic foods. Too much to be able to sustain the existing population, by far. Organic food production is great, and it provides a number of benefits. There haven't been many good studies, but one done a few years back on strawberries shows that organic strawberries have longer shelf life and their production involves better soil health in terms of the diversity and number of biota in the soil. However, energy usage is not one of the benefits. To be sure, some inorganic (hah! what does one call them? synthetic?) fertilizers are made from petroleum, but that's a lot more efficient than burning the stuff. Norman Borlaug's green revolution in the 1960s combined species of plants with better yield and synthetic nitrogen-fixing fertilizers. By the 1990s, the number of calories produced agriculturally worldwide went up by a factor of 6, while the amount of arable land had only gone up by 5%. Without this, a substantial percentage of the world's population would die. Synthetic vitamins are also extremely important. They make these things cheaply by the tonne. Without this, we could sustain maybe 2 billion people worldwide. Get rid of harvesting machinery, and that drops even more. Note also that in the strawberry study, there was only a small improvement in nutritional content of the organically grown strawberries. It was significant, but entirely swamped by differences in varieties and other growing conditions. Organic stuff is great, and it tastes really good (though there's a bigger difference in organic meat and milk than organic vegetables), but it's a luxury item.

First, provide evidence- actual, objective evidence- "organic" foods always lead to "healthy" outcomes.  To do so, you'll have to define organic AND healthy, then describe the direct relation (causation) between the foods we eat and said "healthy"-ness.  Then, you'll need to do a bit of research into exactly how much labor it takes to grow, oh, let's say organic tomatoes, enough to feed, say, just the state of California.  Give that a shot.  First, California soil needs to be amended- provided with the proper nutrients for tomatoes optimal growth, then it needs to be fertilized- given more nutrients specifically for tomatoes, then it needs to be watered (did we talk about the drought at all?) then tomato pests need to be picked off by hand, and the plants sprayed nightly with *something* properly "organic" which will keep pests away, and finally, if enough tomatoes make it and ripen, they need to be picked and sent to market.  ALL of that costs money in terms of actual cash, and labor (time is money).  And it costs significantly more than the actions which produce what you seem to consider "unorganic" tomatoes. Do you want scrawny, wormy fruits, such as apples, or do you want large, juicy, pest-free apples?  Do you want to chance trichinosis from pork, or are you feeling a bit better about worm-free pork?   Which would you prefer to buy: Lettuce which contains up to 150 insects and their eggs, or lettuce which is free of insects? These are your choices.  One utilizes "unorganic" techniques but produces large, healthy, pest-free products for less money and labor, and one produces smaller, just as healthy but pest-ridden products for MORE money and labor. Decide.

Savings individually, or at the society level? An individual saves a LOT of time eating processed foods instead of cooking everything from scratch themselves. They save money too since commercial food preparation buys their ingredients at negotiated bulk rates, not at retail. As for energy, I really don't understand what differences you expect here, since you are not really talking about what sort of food consumption changes you are referring to. You are aware that organic food is MORE expensive to produce (per pound) than non-organic food. There is less waste, higher yields, and the food ships further and stays fresh longer.