Buy Siegel sugar-free oats if it's convenient. They are sold in the supermarket. It seems that 1.5 kg is over 30, so you can eat it with hot water.

Go to the grain store to buy raw oats, cook porridge or add it to rice for cooking.

Use it to lose weight, such as breakfast or dinner.

I heard that some people only eat milk cereal every day (without sugar) and lose 5 or 6 pounds a week, but it's terrible, and their stomachs are miserable without oil and water. I tried, but I couldn't hold on.