I did caloric restriction for a year and eased into it gradually until I was eating two small meals a day. I had no ailments but weighed upward of 230 lbs, 104kg. In a year I went down to near zero body fat and weighed 150lbs/68kg. Unfortunately for my build and frame that made me look sickly so I started eating again and Ive settled around 165 and working to put on a little muscle. Overall I'd say I did this whole thing over two years without much effort. Though yes, getting over the hunger pangs is very hard but once over them you quickly learn to ignore them.

Supplementing with potassium, magnesium, and sodium can help alleviate the hunger pangs I've found.