[ÉªËvan pÊ²ÉªËtrovÊ²ÉªtÉ ËpavlÉf]. ; 26 September [ O.S. 14 September] 1849 â 27 February 1936) was a Russian physiologist known primarily for his work in classical conditioning. From his childhood days Pavlov demonstrated intellectual brilliance along with an unusual energy which he named the instinct for research.
Both pink and red grapefruit are a bit higher in calories than white grapefruit. One whole pink or red grapefruit, raw, has about 104 calories, while one whole white grapefruit, raw, has about 78, according to the USDA National Nutrient Database. These calorie counts are for a medium grapefruit.
The grapefruit is a citrus fruit related to the orange. The number of calories in one whole grapefruit varies according to its size and type, but overall, this tangy fruit is relatively low in calories. Typically eaten raw and fresh, or juiced, grapefruit boasts several nutritional and health benefits.