The absorption of B12 supplements therefore does not require acid and is unlikely to be improved by drinking cranberry juice. The initial dose of lansoprazole should be taken 30 minutes before a meal. 8 Subsequent doses are equally effective taken with or without food but should be taken at the same time every day. 9 Capsules and granule contents should not be chewed or crushed. However, lansoprazole capsules may be opened, the granule contents sprinkled on one tablespoon of applesauce, then immediately swallowed.
Gastric acidity influences the blood response to a beta-carotene dose in humans.
Termanini B, Gibril F, Sutliff VE, et al. Serum iron, ferritin, and vitamin B12 during prolonged omeprazole therapy. Schenk BE, Festen HP, Kuipers EJ, et al. Golner BB, et al. Effect of hypochlorhydria due to omeprazole treatment or atrophic gastritis on protein-bound vitamin B12 absorption.