Phentermine can be used to help BOOST the effectiveness of the episodes of temporary caloric restriction by INCREASING your metabolism and by REDUCING your appetite
The Journal of Biochemistry, 175 (5), 473-480
Low levels of vitamin B can affect everything from your energy and mood to memory, sleep, and immune function
Individuals suffering from the symptoms of low vitamin B12 (or pernicious anemia), such as depression, exhaustion, anemia, and poor memory, may ask their doctor about vitamin B12 injections
How well the body absorbs B12 depends on age, gut health, and medical conditions