just want to say these changes look great. I agree health is nearly meaniningless as is and any attempt to fix that is cool. I also agree it seems like you guys are complaining before you have played any games with this new restriction. why does no one take this as a challenge?
Challenge is fine. Problem with abundance of health is acknowledged. But solution offered is unsatisfactory on the face value.
Leoreth himself plays his mod less than you play your mod. Over the period of years modders develop a mindset different from users. Who do people going to feel about any implementation is as important as end result of the fix. A simple truth which somehow annoys modders when they are told about it.
Those who play Civ 4 for years have very intimate and simple understanding of resources: they present trade value by themselves, buildings are there just to enhance their effect. Leoreth has broken this important paradigm and expects us to enjoy it.
But there are many other ways to work around the same problem without changing the very basics of the game so drastically.
1. Balance health by removing effects from buildings not resources. The end result will be the same, with a brief exception for the time it takes to build a Granary (which comes free later on). Much more elegant than making Wheat useless without Granary.
2. Overcrowding was greater problem because of lack of sanitation in many civilizations. Simply make every citizen to generate 2 or 1.5

. Much more realistic and uniform than treating resources differently. Yeah I forgot about Bananas being more important that Rice now
3. Base health ("from civilization and difficulty level") can be modified by anothe variable "for era". Each era brings different base level of

. Elegant, simple, and realistic.
Etc and Etc.
What we never lack here are ideas. If we compare mods with movies SoI can be compared to a good mini series which enjoyed popularity during the polishing season and then people just moved on. DoC and in lesser extent CW are more analogues to good but endless interactive shows with many seasons and new plot being actively discussed and developed as we see our favorite heroes such as Aztecs and Mongols to adapt to new realities. People are so active with this mod not simply because it is good or unique, but because you guys keep talking to us and keep working on these projects.
Finally it is time to say few words about the very concept of

in BTS.

is not a simple disease.
Malnutrition is also 
! Pick Babylon. With wheat and without wheat. Without Wheat every plot produces some amount of food. But what food? Not every food has the same nutritional value and favorable "energy spent to produce food/energy derived from food" ratio. Rice, Corn and Wheat happened to be simply more effective food types than others. Less effective foods result in malnutrition of Babylonian citizens. Now after many years of struggle with building a worker, flipping Shush, farming Wheat and building road Babylon finally has it's first resource! Tiles still produce same amount of food but that

on the Marble tile means that Babylonians now planting there Wheat instead of, say, pumpkins, and Wheat just happens to be more effective nutritional source than pumpkins! Because of that the end result in Babylon city screen is a better nutrition of citizens which results in population growth. IT REALLY IS THAT SIMPLE! Please don't brake this logic.