It sounds safe enough. Godspeed! 
I also tried fasting a few months ago. It does me a lot of good! Keep it up! I am now trying to implement a “Taoist” diet with very little meat and having a yin-yang balance in the food that also helps a lot on the spiritual side 
;.
I am against starving yourself and rigorous fasting. We should eat healthy and eat small portions often. I rarely eat meat and it is almost always fish. Religion is important but it should not cost you your health. (my opinion)
Hi Gustavo,
Fasting in moderation, is actually quite healthy for your body. This partly has to do with the way that insulin works in the body. During short periods of fasting, the body actually goes into a self-cleaning mode, clearing out dead cells and converting excess fat into energy.
Short periods of fasting could be for as little as 12-hours. This is called 12-12 intermittent fasting, for example where someone would only eat between 8 in the morning and 8 in the evening. If people only eat say between 10 in the morning and 6 in the evening, this is 16-8 intermittent fasting (16 hours of fasting with an 8-hour eating window). A slightly longer fast with only water could be done for 24 hours, or for several days at a time. This can also be done drinking juices, or eating soup. It will still have a beneficial effect on the body if done with juices or soup.
There are spiritual benefits to fasting as well, because when we eat less food, prana rises in the body to provide energy and this prana has an energising and purifying effect on the subtle neurobiology. Even short periods of fasting will have some spiritual effect.
Personally, I would not recommend fasting to someone who is not naturally drawn to it. But what I find is that as people progress on the spiritual path, there is usually a time when they are drawn to fasting. That is the right time to take it up, if you do.
You may find these lessons useful:
Lesson 310 - Fasting - A Powerful Spiritual Practice
Lesson 167 - Living on Air and Sunlight Alone?
Christi