"Why aren't they telling people to exercise and eat better?" Hasn't the government been telling people this for decades? And more specifically 'they' have been

"Why aren't they telling people to exercise and eat better?" Hasn't the government been telling people this for decades? And more specifically 'they' have been making clear the connection between Covid morbidity and obesity since almost day 1. How can someone honestly and in good faith argue that 'they' aren't telling people to exercise and eat better? The problem is that the government telling people to exercise and eat better doesn't really move the needle when it comes to actually getting people to exercise and eat better.