Seniors get a warning on medical alert scam. Barbara Adams, 70, keeps getting one of those annoying robocalls that she just knows has to be a scam.The voice implies that somebody, her doctor or maybe her children, signed her up for a medical alert system.It's all free, the recording implies.eniors get a warning on medical alert scam. Barbara Adams, 70, keeps getting one of those annoying robocalls that she just knows has to be a scam.
5.1 Definition and classification. Vitamins are a heterogeneous group of organic compounds essential for the growth and maintenance of animal life. The majority of vitamins are not synthesized by the animal body or at a rate sufficient to meet the animals needs.
These are foods that contain vitamin A or its precursor called beta-carotene. Animal foods contain vitamin A whereas no plant food provides vitamin A but instead they have beta-carotene which is converted to vitamin A in the liver.The foods listed in this article are good sources of vitamin A or beta-carotene.hese are foods that contain vitamin A or its precursor called beta-carotene. Animal foods contain vitamin A whereas no plant food provides vitamin A but instead they have beta-carotene which is converted to vitamin A in the liver.