Basically, do the opposite of medical conventional wisdom. Keep carbs down. Eat animal fats (bacon, butter, clarified butter) and stay away as much as possible from poisonous vegetable oils like canola, corn, peanut, etc.
Don’t worry about eating cholesterol.
Get rid of processed crap and eat real food. Steaks, eggs, chicken, pork...and veggies! Fresh ones taste better.
Don’t worry about salt unless you have an existing heart problem. In fact, make sure you’re getting enough salt. Many people don’t (especially those who don’t consume a lot of processed food) and the government recommended amounts are not enough for most people.
Get your T levels checked and make sure it is optimal. If it isn’t, make it optimal.
Lift weights. Why? Because being strong feels awesome and you know what people with lots of muscle mass can do? EAT. A LOT! :-)
I’ve been either grilling our veggies or roasting them. They taste awesome!