The term 'Atkins No-Nos' refers to the low-carbohydrate diet created by Dr. Robert Atkins in the 1970s. The crossword solution for this term is CARBS, which stands for carbohydrates. Carbohydrates are a type of macronutrient found in many foods, including grains, fruits, and vegetables, and are an important source of energy for the body. Atkins No-Nos refer to the avoidance of carbohydrates in order to achieve weight loss.