This does not have an easy answer for it really depends on what works for you.
There are many different diet programs that are available, and some might say that this one is better than that one. Honestly, it isn’t about which one is best to them. It’s about which one is best for you. Of course these programs usually cost money and might not be a good option for some people due to this. Thankfully, there are other options.
You can also buy lots of fruits, vegetables and fresh meat, and it would be hard to go wrong. Eating these foods is the healthiest way to go, because it gives you fresh food without having to spend extra money on a diet program, but it can be difficult because you have to moderate yourself, and I know I wouldn’t need to lose weight if I was good at that in the first place.
The important thing is to just start. Don’t wait for this or that, or for the perfect time, because it won’t happen. Once you do start, log what you eat and pay attention to how your body reacts to certain foods. It will let you know what is good for it and what isn’t.
P.S. What do you do when you need to lose weight?