Is the GM (General Motors) diet good for PCOS?

No, the GM (General Motors) diet is not recommended for PCOS. It is a 7-day crash course that involves eating specific food groups (like only fruit one day, or only vegetables the next). To be blunt, it isn’t a great choice for PCOS. It’s a "fad" diet that focuses on temporary water weight loss rather than hormonal health. Eating only fruit for a day can cause massive insulin spikes, which is the opposite of what you want. It also lacks consistent protein, which can lead to muscle loss and intense hunger. For PCOS, you need stability and consistency, not a week of extreme fluctuations. You’re much better off building a balanced habit you can actually keep up with.