Try to avoid retinol, retinyl palmitate and retinyl acetate, which may increase the risk of hip fracture and certain birth defects when taken at levels exceeding 10,000 IUs.

尽量避免retinol，retinyl palmitate 和 retinyl acetate，当服用水平超过10，000 IUs时，折和患上某些先天缺陷的风险。