When Oral Supplements Are Sufficient: Mild Deficiency Cases: Dietary insufficiency without absorption issues Preventive supplementation Cost-conscious approach No underlying digestive problems Recommended Dosage: 250-1000 mcg daily for maintenance When B12 Injections Are Superior: Severe Deficiency or Absorption Issues: Pernicious anemia Digestive disorders affecting absorption Rapid correction needed Previous failed oral supplementation The Science: Intramuscular B12 injections bypass the digestive system entirely, providing 100% bioavailability compared to 1-5% from oral supplements in deficient individuals
If you feel your energy levels need a boost, consider red light therapy, and using one of the best NAD-boosting supplements to increase cellular energy naturally may be helpful
Oral supplementation is popular due to its convenience, but absorption can be variable as glutathione may be partially broken down during digestion
As part of your routine labs, I do suggest people have basic blood testing for some of the common deficiencies we see in Hashimotos (including B12, ferritin, zinc, and vitamin D)
Protect: Limit direct sun exposure and refrain from smoking and alcohol during the treatment
