You're absolutely right about weight. One of the big concerns of an industrial food system is shipping. The other big concern is shelf life.
Neither of these are nearly as big of a concern if you get your food from a local farmer. The health of the consumer is not much of a concern, except in terms of marketing.
Right now, it is more expensive to buy local food from a farmers market than it is to buy industrial produced shipped from thousands of miles away. This should change, and it should change by shifting subsidies away from large industrial farms to small local farms.
Neither of these are nearly as big of a concern if you get your food from a local farmer. The health of the consumer is not much of a concern, except in terms of marketing.
Right now, it is more expensive to buy local food from a farmers market than it is to buy industrial produced shipped from thousands of miles away. This should change, and it should change by shifting subsidies away from large industrial farms to small local farms.