[dukeluke]

4) Saying it's safe to do so opens you up to liability for other people's injuries from the diet.

[baldfat]

Don't start exercising without first speaking with your doctor. Now we are going to do 3 jumping jacks and then sit down in a chair.

[numbsafari]

You'd be amazed how many people show up for activities like that after having surgery. I had a woman come to a dance class with a knee brace on and ask if it was okay to participate even though she had had knee replacement surgery the week prior.

For someone with diabetes, an unmonitored and poorly planned fasting diet could be a recipe for disaster.