Do weight loss shakes work?

I need to lose weight, are meal replacement shakes safe? I’ve read if you don’t consume enough calories a day it won’t matter how much you workout if your body doesn’t have all the calories it needs you’ll stay were your at, is this true? I’m eating way less calories and working out 40 minutes a day and having no... show more I need to lose weight, are meal replacement shakes safe? I’ve read if you don’t consume enough calories a day it won’t matter how much you workout if your body doesn’t have all the calories it needs you’ll stay were your at, is this true? I’m eating way less calories and working out 40 minutes a day and having no results
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