In the blood stream as nicotinic acid, it can cause skin flush and this reaction is actually responsible for the tolerable upper limit (UL) for niacin at 35 mg/d for adults in US (20)
Ensure you select sharper needles
Professional Guidance: Healthcare professionals can tailor MIC treatment plans based on individual needs, ensuring safety and effectiveness
To gauge improvement, track specific issues you had before, for instance, frequency of mouth sores (which can occur with B deficiencies), or numbness in feet, or level of fatigue on a 10-point scale
You could search online for "B12 deficiency cardiac symptoms" if you want more info
[142] Identification of liver as an anti-anemia food [edit] During the 1920s, George Whipple discovered that ingesting large amounts of raw liver seemed to most rapidly cure the anemia of blood loss in dogs, and hypothesized that eating liver might treat pernicious anemia