When you're poor, changing a habit in such a major way involves a ton of willpower. It's hard to have that willpower when there's a million things that absolute

When you're poor, changing a habit in such a major way involves a ton of willpower. It's hard to have that willpower when there's a million things that absolutely must be solved (a lot of them involving money). Money is what buys you the ability to have luxuries such as making nonessential dietary changes.