I believe one of their goals was to lower testosterone in general population, to make for a meeker and more easily controlled population. This probably wasn't a 'fully evil' goal, since the horrors of WW2 were recent, and some of them thought that they could prevent that from happening again by engineering a less aggressive population.
From the onset of 20th century at least, it was known that testosterone is responsible for 'manly' characteristics (aggressiveness etc); in 1935 it was synthesized from cholesterol by Lavoslav Ruzicka. So, by the end of WW2 it was already well known that a) testosterone is what makes people aggressive and b) body needs cholesterol to synthezise testosterone. With this information in hand, it's easy to conclude that to get a less aggressive population, one should make them eat less saturated fat/cholesterol.
Enter Ancel Keys, a military-related dietologist (he created the ww2 K-rations, for example). Before mid 1950s, he was making rational scientific research into good/bad foods, and even published some material about the negative health effects of 'grain' ie carbs. But by the mid 1950s he made a full 180 and started attacking saturated fats and cholesterol as the cause of (especially heart-related) health problems. He started using bad science (selectively choosing countries for study to confirm his claim that it's high fat and not high carb diet that causes health issues), and using his pull to silence everyone claiming otherwise.
In 1960s/1970s he was joined by the Big Agro/Food who poured a lot of money into continued shifting of the blame from carbs onto fat, including silencing and ostracizing scientists and studies who dared to claim otherwise; this is the 'conspiracy' that we are familiar with, but I believe it started even earlier, with Ancel Keys, military, and 'powers that be'.
It is sad that you are downvoted (however you may have told it without hints to conspiracies), because there are parallels to what you say about that time's mentality in for example the "Morgenthau Plan" that was fortunately dumped in 1947 and replaced with its opposite the "Marshall plan".
During implementation of the Morgenthau Plan, Germans had to live with 1200 calories per day:
I believe one of their goals was to lower testosterone in general population, to make for a meeker and more easily controlled population. This probably wasn't a 'fully evil' goal, since the horrors of WW2 were recent, and some of them thought that they could prevent that from happening again by engineering a less aggressive population.
From the onset of 20th century at least, it was known that testosterone is responsible for 'manly' characteristics (aggressiveness etc); in 1935 it was synthesized from cholesterol by Lavoslav Ruzicka. So, by the end of WW2 it was already well known that a) testosterone is what makes people aggressive and b) body needs cholesterol to synthezise testosterone. With this information in hand, it's easy to conclude that to get a less aggressive population, one should make them eat less saturated fat/cholesterol.
Enter Ancel Keys, a military-related dietologist (he created the ww2 K-rations, for example). Before mid 1950s, he was making rational scientific research into good/bad foods, and even published some material about the negative health effects of 'grain' ie carbs. But by the mid 1950s he made a full 180 and started attacking saturated fats and cholesterol as the cause of (especially heart-related) health problems. He started using bad science (selectively choosing countries for study to confirm his claim that it's high fat and not high carb diet that causes health issues), and using his pull to silence everyone claiming otherwise.
In 1960s/1970s he was joined by the Big Agro/Food who poured a lot of money into continued shifting of the blame from carbs onto fat, including silencing and ostracizing scientists and studies who dared to claim otherwise; this is the 'conspiracy' that we are familiar with, but I believe it started even earlier, with Ancel Keys, military, and 'powers that be'.