None of the ingredients in Fibronol or FibroBoost – SEANOL, malic acid, aloe vera, magnesium, and vitamin B-1 – are expected to impose any risk for pregnant women or their fetuses. The magnesium may aggravate a sensitive bowel and possibly increase any predisposition towards diarrhea. We always recommend that pregnant women consult with their physician before adding any new supplements to their routine. Teen-agers may use either product. Younger children would not be expected to be taking Fibronol or FibroBoost. However, even if a child accidentally ingested a few capsules, there should not be any serious side effects.