Figure 7.

Serum VB₁₂, serum MMA, and plasma tHCY results from 15 non-VB₁₂-deficient patients after taking multivitamin preparations. The results from 15 patients who had started on multivitamins on their own before their final evaluation are shown. The changes in blood VB₁₂, MMA, and tHYC between their last two NIH evaluations are shown on the Y axis, with one being prior to starting any multivitamin and the other after taking a daily multivitamin preparation, all of which contained crystalline VB₁₂. Each line shows the effects before or after the multivitamin ingestion. The serum VB₁₂, MMA, and tHCY levels for a given patient, shown by the dark lines, represent the mean effect. The mean changes in serum VB₁₂ (334 ± 15 to 504 ± 40 pg/mL (p = 0.0003)), MMA (0.21 ± 0.02 uM to 0.13 ± 0.01, (p = 0.0009)), and tHCY (9.50 ± 0.69 uM to 7.43 ± 0.52 uM (p = 0.0176)) are shown.