In marketing, product bundling is offering several products or services for sale as one combined product or service package. It is a common feature in many imperfectly competitive product and service markets. Industries engaged in the practice include telecommunications services, financial services, health care, information and consumer electronics. A software bundle might include a word processor, spreadsheet, and presentation program into a single office suite. The cable television industry of
1 The research on diabetes and vitamin D and calcium supplements is not conclusive. 2  Supplementing with vitamin D combined with calcium appears to lower the risk of developing type 2 diabetes, according to a 2007 systematic review and meta-analysis.
Many of the âBâ vitamins help your metabolism function properly and help with red blood cell production. Some body functions require specific vitamins. For example, vitamin D is essential to help the body to absorb and maintain the proper levels of calcium. However, it is difficult to get from your food.