I used this product for 4 weeks and noticed some strange effects. After about 3 weeks of taking my vitamins I was feeling better than ever, but I noticed that I started to exude a cabbage-like odor. At first I thought nothing of it and attributed it to my now higher nutrient intake from the vitamin pills and the accumulation of these nutrients in my skin cells. However, about 5 days after I first noticed the smell(which had intensified each day) I went to take a shower and to my horror, saw a broccoli-like growth on my inner thigh. I quickly cut it off with my bunion shears and continued to shower as normal. I convinced myself that the growth was just a one-time side effect that would go away once my body adapted to the new super-concentrated amounts of nutrients I was now feeding it. But alas, five or six days later another growth sprouted up, this time on the top of my right foot. Well, that was about all I was willing to put up with, so despite my increased vigor and vitality, I immediately stopped taking my vitamins.

I’ve since come to the conclusion that the human body is just not meant to digest such a massive quantity of potent nutrients as is provided in these Centrum pills. I am not an expert on the human genome, but my theory is that the flood of plant-based vitamins and minerals somehow “tricks” the body’s DNA into thinking it is in fact plant DNA! Perhaps given enough time the body will re-adjust to its new nutrient supply and the DNA will go back to normal, but I was not willing to wait and see. I hope that other more resilient reviewers will report on their long term progress with these vitamins.

In the end, despite Centrum’s EXCELLENT value among vitamin supplements, I believe that it is too potent for the average human being and therefore must award it only 4 stars.