Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Packs a heavy punch

Similar to the other reviewers, these pills are big and can be cumbersome to swallow, however I can feel a big difference in energy level and improvement of my complexion. I'm taking these in anticipation of pregnancy to ensure that my body's got adequate nutrition. One thing I notice is that I feel slightly nauseous and less hungry, but frankly I welcome that side effect!