Heavy-duty 220 or 240-volt outlets: $300 or more for an outlet running off of a nearby outlet; $600 or more to upgrade the existing panel, which includes adding a 220 to 240 volt circuit, running the conduit, and installing a new receptacle.
Riboflavin is a B vitamin. It can be found in certain foods such as milk, meat, eggs, nuts, enriched flour, and green vegetables. Riboflavin is frequently used in combination with other B vitamins in vitamin B complex products.
The current DV for Riboflavin (Vitamin B2) is 1.7mg. Below is a list high riboflavin foods, click here for high vitamin B2 (riboflavin) foods by nutrient density, here for an extended list of riboflavin rich foods, and here for other vitamin B foods.