Hungry

Hungry by H. A. Swain

In a post-apocalyptic world, people just need to drink a fluid to get all their nourishment. A giant company controls all production of it and has in the process banned regular food. They have limited the number of children that can be had and curtailed sexual drive. A daughter of high-ranking company employees falls for a boy. They meet up the resistance, and try to bring back food. This does not make the parents or society happy. This all seems quite familiar. There does seem to be bits of attack on corporate dominance and global warming together with government/corporate collusion.