I think I've trained my body to handle large amounts of solid foods right after a fast without experiencing any issues.

that's very unlikely!

you should read this thread about refeeding.

in particular you should read this comment, and this one.

read these as well :

how-does-dehydration-affect-blood-glucose-levels - Not only does dehydration increase blood glucose levels, but increased blood glucose levels exacerbate dehydration because the body disposes of the excess glucose in the urine, leading to increased water loss.

what-happens-with-lack-of-electrolytes

The biggest risk with fasting is loosing electolytes, the body will use up electolytes when fasting and they won't get replaced until you start refeeding, but it you refeed wrong you can make the problem worse, most people refeed wrong and make the problem worse.

The only safe way to refeed is with an electrolye drink/milk , even water is not a good idea as it will dilute the electrolytes even more and your body will start to urinate out the water, urine contains electolytes as the kidneys normally only retain 85% of the electolytes, maybe this goes up when dehydrated but I doubt never to 100%.

Refeeding with too much glucose can also kill you, and that includes fruit juices and chocolate milk/bars, sweetend soya milk, etc !

There are a few people on curezone who claim to be experts on fasting but actually they are deluded.

There are a lot of people fasting with distilled water, but that is a VERY bad idea, the World Health Organisation recommend people never drink distilled water as it leaches minerals/electolytes from the body, there are people on curezone who claim that is rubbish as the kidneys only get rid of what the body doesn't need so leaching doesn't take place, I did a lot of research into that to try and find a definite answer and in the end I found the consesus in the medical world is that only 85% of electolytes are retained and the kidneys loose 15% of the electolytes from the blood they filter into the urine.

Ironically I think dry fasting is probably safer than water fasting as with water fasting there are more factors that can cause a loss of electolytes, ie.water being turned to urine that contains electolytes, and water fasts tend to be much longer therefore much more electolytes are lost via sweating.

There are people on this forum who have dry fasted for over 10 days and didn't really know what they were doing, there is a very real risk of death from what we do and NEW dry fasters need to TAKE NOTE !!

Stay Safe.