if ur lactose intolerant then why need to rink weight gain at all? why not try eat real food all the time? i nvr try any of the protein milshake while i was bulking up in this 2 months time anyway...

are you rice/noodle/chicken/beef/meat intolerance? if you wan gain weight. just eat the damn meat. meal time dont matter. you can dabao economic rice and eat later. supper can have tandoori chicken breast at mamak. why not? you can increase you rice intake also if you wan gain weight.

What kind of side effect?

Why not just take 5 eggs whole?

Which protein shake is that? I have lactose intolerance as well but ON Gold Whey is fine for me.

No worries on the cholesterol part. Contrary to popular belief, cholesterol is essential for our body. Cholesterol you consume will NOT cause you to have a heart attack (it's not that simple) and cholesterol levels are regulated by our body, if you consume less cholesterol laden food, your body produces less cholesterol, vice versa.

To cut it short, don't worry about eating many eggs or other cholesterol rich food.