Eventually Trump. The food fight has pitted Joe Biden — who prefers carbs over greens — against First Lady Jill Biden, who has been pushing the commander-in-chief to eat more fish and veggies whether he likes them or not (he doesn't). Jill Biden Pushing Joe Biden to Eat a Healthier Diet and to Stop Eating ‘Like a Child’ By Megan Hamilton May 10, 2023 First lady Jill Biden is apparently not thrilled with her husband President Joe Biden’s diet and she’s trying to make some changes to get him to eat healthier food.