The simple answer to this question is NO – there is no physiological basis in which the blood group diet works. REMEMBER that by reducing your calories by cutting out any food group = ENERGY RESTRICTION and any form of ENERGY RESTRICTION = WEIGHT LOSS IS PROMOTED.
Are you really eating for two when you are pregnant?
In the first trimester
In the first trimester you actually don’t need to eat any more than you usually do. In other words, your energy requirements are the same.
Can your body be too acidic? Can what you eat make a difference?
Life on earth is dependent on the appropriate pH levels. In the human body this is tightly controlled by homeostasis (a balance in the body that keeps blood levels normal or very close to normal).