Lets compare vitamin content per 1 pound of Oranges vs Grapefruit:
Raw Oranges have 2.4 times more Vitamin B1, 2 times more Vitamin B2, 1.4 times more Vitamin B6, 3 times more Vitamin B9, 1.5 times more Vitamin C and 1.4 times more Vitamin E than Raw Grapefruit.
While Raw Grapefruit contains 4.2 times more Vitamin A than Raw Oranges.
Both Raw Oranges and Raw Grapefruit have similar amounts of Vitamin B3 and Vitamin B5 per 1 lb.
Both Raw Oranges as well as Raw Grapefruit have insufficient amounts of Vitamin B12, Vitamin D and Vitamin K in 1 lb.
Comparing minerals per 1 pound for Oranges vs Grapefruit:
Raw Oranges have 3.3 times more Calcium, 1.3 times more Magnesium, 2.1 times more Manganese, 1.8 times more Phosphorus and 1.3 times more Potassium than Raw Grapefruit.
Both Raw Oranges and Raw Grapefruit have similar amounts of Copper, Iron and Water per 1 lb.
Both Raw Oranges as well as Raw Grapefruit have insufficient amounts of Selenium and Zinc in 1 lb.
Comparison of macro-nutrients per 1 pound:
Raw Oranges have 1.5 times more Energy, 1.5 times more Carbohydrate, 1.3 times more Sugars, 2.2 times more Fiber and 1.5 times more Protein than Raw Grapefruit.
Both Raw Oranges as well as Raw Grapefruit have insufficient amounts of Fat, Omega 3, Omega 6, Cholesterol, Glucose and Sucrose in 1 lb.