I once tried one of those diet ‘shakes’ where you mixed the powder with diet lemonade. After one of those I couldn’t eat for days and had to force drinks corn my throat. Never again.
When I heard about the Newcastle Diet, I investigated meal replacement shakes and found that most of them have high amounts of sugar in them. Not good for me as I was diabetic.
I have a busy life and have just finished 21 weeks on the BSD, just using real food. Keeping easily prepared foods in the fridge helps. Boiled eggs, cooked meat, salad, even cheese. When I get home too tired to cook something like that keeps me on track.