If this sounds doable to you, there is some research suggesting that 1,200 calorie diet may be beneficial, especially for people with metabolic diseases, such as prediabetes or Type 2 diabetes.

Putting pregnant women who develop diabetes ... had 1,200 calories a day. All boxes comprised 40% carbohydrate, 25% protein, and 35% fat. Gestational diabetes is usually treated with diet changes ...