Is it healthy for me to lose weight like this? Is it necessary to do strength training?

I think strength training is necessary and it costs more than running. If you run too much like this, you can easily hurt your joints. I once lost more than ten kilograms an hour a day for a month, but my joints really hurt. I suggest you run five or six kilometers every two days. Reduce the fat intake in Chinese food for breakfast, use water for greasy dishes, eat less fat, don't eat too salty, and don't drink alcohol. Don't turn on the air conditioner, stay in a cool and ventilated place. Wipe your sweat in time and pay attention to hygiene. There is no need to eat only fruit for dinner. It's almost five minutes I'm afraid I can't stay up at night just eating fruit. Eat oatmeal that needs to be cooked. Losing weight is very important, but eating is more important. If you eat too much oil at ordinary times, the exercise effect will be difficult to have an effect. As long as you control your diet and do such exercise, you can lose about ten pounds a month. Keep watching other people's experiences on your mobile phone. Keep has many exercises that you can do at home. It is good for you to practice more.