Here you’ll find 2 vitamins that start with R that begin with R, organized from “Retinol” to “Riboflavin”. Both support vision, skin, and energy, and riboflavin often colors urine bright yellow.
Vitamins that start with R are essential micronutrients with names beginning with the letter R. Retinol dates back to early vitamin research, while riboflavin is known for its bright yellow pigment.
Below you’ll find the table with [COLUMN_NAMES].
Vitamin: The vitamin name in quotes so you can quickly locate the entry and match it to labels or supplements.
Benefits: A short summary of key health roles so you understand why the vitamin matters for your body.
Food sources: Primary foods listed so you can plan meals that supply this vitamin through natural dietary choices.
Recommended Daily Intake (RDI) & notes: RDI values with age and gender caveats and a source note to help you compare needs and labels.
Vitamins that start with R
| Name | Family/Aliases | RDI (typical adult) & source | Primary food sources | Description |
|---|---|---|---|---|
| Riboflavin | Vitamin B2 (Riboflavin) | 1.3 mg (adult men; adult women 1.1 mg) [NIH] | milk, eggs, lean beef, almonds, spinach | Supports energy production, healthy skin and eyes, and helps convert other vitamins into usable forms. |
| Retinol | Vitamin A (Retinol) | 900 µg RAE (adult men; adult women 700 µg RAE) [NIH] | liver, dairy milk, eggs, oily fish | Essential for vision, immune function, and cell growth; retinol is the active animal form of vitamin A. |