>>1005095Not really since there's always been a surplus of food in the world. The problem is logistics for getting the food to the people and people actually caring about other people. There's plenty of land for crops that don't yield very well.
And, yes, they discontinued the older cultivars because tastier cultivars are more well liked. They didn't do that because of nutrition. The did it for taste and/or looks. That is why the red delicious apple was once a favorite until it started to taste too bitter and less sweet. Now it is in decline. The ironic thing about that is that it was selected for looks, which consistently increased its nutritional value. But, people don't like the flavors that come with that so they switch to sweeter apples. The process is now repeating in other apple cultivars. The growers are selecting them for looks, they are increasing in nutrition as a result and the populace is starting to dislike them. It is an odd cycle. People want a bright red apple and a sweet taste with good flavor, but you can't have both.