Probably not since patients have survived for years on intravenous feedings fortified with only these vitamins. Although individual vitamins differ widely in structure and function, some general statements do apply. Water-soluble vitamins are stored only to a limited extent, and frequent consumption is necessary to maintain saturation of tissues. Fat soluble vitamins can be stored to massive degrees, and this property confers upon them a potential for serious toxicity which greatly exceeds that of the water-soluble group. The U.S. RDA specifies the amounts and kinds of nutrients judged necessary to maintain a positive state of health.
Most people can do just fine on less.
The FDA has issued bans against several claims and statements regarding food and diet supplements. Claims cannot be made that food or diet supplements alone can prevent, cure, or treat illness or that ingredients have nutritional value. Many vitamin advocates suggest that everyone should take supplements to be sure to get enough. Contributing factors include loss of appetite associated with nausea and vomiting, or congestive heart failure, pregnancy or infection. Restricted diets because of chronic alcoholism, Ignorance, or poverty may also be considered prime contributors to vitamin deficiency.