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As a lay practioner, I recently started avoiding dinner except for social occasions where it would be an awkward imposition on hosts.
More importantly, I also had to deal with constant weight loss that would have lead to self-mortification. Constant weight loss has a bad outcome in the obsession with control, rules and food avoidance. Simply put, the danger is anorexia, which is a form of self-harm and self-mortification.
Over several months I lost 8 pounds gradually. This seemed innocuous until I realized that the weight loss did not stop. It was at that point that I recognized the difference between various levels of hunger. It was also at that point I started eating small pieces of chocolate in the afternoon or evening to stay alert. The chocolate was medicine.
If you have a regular doctor, it might good to discuss intermittent fasting with them so that they can advise you on any concerns related to your personal state of health.
Other than the weight loss caveat, the only other slight downside I have noticed is a slight increase in feeling cold. The remedy has been simple. I don a jacket and hat in the house during winter.
The benefits of relinquishing dinner have been clear. I am less irritable when hungry, which makes sharing food easier. I have lost needless weight and fit into my clothes better. I can climb better since I weigh less. I sleep better without things gurgling down below. I eat whatever I wish before noon without feeling guilty (and THAT is wonderful!)