Lets compare vitamin content per 7 ounces of Buckwheat vs Oranges:
Buckwheat has 10.6 times more Vitamin B2, 24.9 times more Vitamin B3, 4.9 times more Vitamin B5 and 3.5 times more Vitamin B6 than Raw Oranges.
While Raw Oranges contain more Vitamin A and more Vitamin C than Buckwheat.
Both Buckwheat and Raw Oranges have similar amounts of Vitamin B1 and Vitamin B9 per 7 oz.
Both Buckwheat as well as Raw Oranges have insufficient amounts of Vitamin B12 and Vitamin D in 7 oz.
Comparing minerals per 7 ounces for Buckwheat vs Oranges:
Buckwheat has 24.4 times more Copper, 22 times more Iron, 23.1 times more Magnesium, 52 times more Manganese, 24.8 times more Phosphorus, 2.5 times more Potassium, 16.6 times more Selenium and 34.3 times more Zinc than Raw Oranges.
While Raw Oranges contain 2.2 times more Calcium and 8.9 times more Water than Buckwheat.
Comparison of macro-nutrients per 7 ounces:
Buckwheat has 7.3 times more Energy, 28.3 times more Fat, 49.4 times more Saturated Fat, 11.1 times more Omega 3, 53.4 times more Omega 6, 6.1 times more Carbohydrate, 4.2 times more Fiber and 14.1 times more Protein than Raw Oranges.
Both Buckwheat as well as Raw Oranges have insufficient amounts of Cholesterol, Glucose and Sucrose in 7 oz.