In the tradition of Captain Awkward I’m going to treat the search terms people used to find the site as questions.
im 400lbs is it too late for me to get healthy?
This is completely up to you and to how you view health. If you are sedentary, you can probably be more active, and ideally have fun with it. Depending on how you eat, you may want to add more veggies or whatever makes your body feel better – The Fat Nutritionist may be able to help with that as well. Research has found that focusing on eating healthy foods and being active can reduce blood pressure and cholesterol as well as psychological benefits. This is called a “Health At Every Size” approach, and focuses on improving health.
If you mean thinner, then that’s a different question. Medicare’s Search for Effective Obesity Treatments: Diets Are Not the Answer (PDF) by UCLA reviews 31 studies on diets and recommended that Medicare not cover diet programs because they are not effective enough to be worth Medicare coverage.
350lb flying cross country?
OK. That sounds like a lot of time to sit still. It’s probably going to be uncomfortable.
if i weigh 450 pounds do i need an extra airline seat?
Very likely. Airlines have some choice on how many seats they squeeze into a plane. Seat Guru has information on seat sizes by plane and airline so you can check. One method is to check the size of the seat, then measure chairs to see what the airline seats will be like. Note the “pitch” is the distance between seats, and affects how much legroom there is.
If you do need an additional seat, you will probably have to call the airline to make the reservation, and the airline will probably warn you the seats may not be together. Yes, this is a problem.
what can a fat person spray on body to prevent yeast?
I have mostly rely on baby powder (cornstarch) to prevent chafing and yeast infections under my belly. Anti-jock itch spray like Lotramin can work as well. Lately I’ve been experimenting with Fresh Breasts lotion, which dries as a powder. This can be easier to apply than a powder.