There is no complete information.
If you weigh 52 kg today, you will almost certainly die. If your current weight is 160kg, most likely there will be no absolutely shocks for the body.
The truth depends on the method of losing weight. If it is an absolute hunger strike, your kidneys and stomach will not be envied. If it is a medically controlled (evidence-based) process, your chances of being minimally affected are increased.
This is theoretically possible. For example, with complete starvation, a person can lose up to 10-12 kg in a couple of weeks. If incomplete, most likely it will not work, because the metabolism will slow down greatly.
The question is why. Let's take the example of bezulevodka - it is close in mechanisms to starvation. Glycogen in muscles and liver is enough for 12 hours. Then fats begin to burn intensively. But (as they say, fats burn in the fire of carbohydrates) due to a lack of carbohydrates, ketone bodies will quickly begin to accumulate as a result of poisoning, vomiting, and loss of consciousness. Then, in a healthy person, special mechanisms are turned on and fat will burn slowly, catabolism of proteins, primarily blood and muscle albumin, will begin, until the last moment the body will try to preserve the heart and brain (and diabetics, say, at this stage, fall into a coma, because they have mechanisms associated with reducing fat burning do not work). Basal metabolism will begin to slow down. During this period, women have problems with the reproductive cycle. Thinking problems due to excess ketones and lack of glucose. Thermogenesis problems, fatigue, etc. a terrible feeling of hunger, because with partial starvation, there is no complete suppression of the food center.
There can be many health problems.
Therefore, it is recommended to try to lose no more than 3-4 kg of weight per month. This is the maximum rate of fat burning, without much harm to the body and restructuring of metabolic processes.
an interesting topic, I can recommend a textbook on pathophysiology. The processes are well described there
With a balanced diet and regular exercise, can you lose 10 kg in 2 months, or does it take longer?