A walnut and jujube breakfast can't lose weight. The principle of losing weight is that the daily energy consumption is greater than the daily intake, and the purpose of losing weight can be achieved without eating something. Take more exercise. Eating corn, sweet potatoes, purple potatoes, brown rice and chickpeas will make you feel full. Eating broccoli, cauliflower, cabbage and spinach as vegetables will make you feel full. Although carrots are nutritious, they are high in GI. Try not to eat. Take part in aerobic exercise to increase energy consumption. I hope my answer can help you.