If you're not getting enough B12, you can experience anemia, fatigue, weakness, constipation, decreased appetite, weight loss, dizziness, lightheadedness, confusion, poor memory, soreness of your tongue and mouth, and tingling and numbness in your hands and feet, according to Harvard Health Publishing
The abdomen works well for most users
In clinical use, both forms deliver results when matched properly to the patients physiology and goals
Helps Prevent or Treat Diabetic Neuropathy: Theres evidence showing that vitamin B12 supplements may improve symptoms among people with diabetic neuropathy, nerve damage thats associated with diabetes
The time it takes for Vitamin B12 supplements to work depends on the supplement form and the extent of body deficiency
But these effects should go away pretty quickly