Lets compare vitamin content per 100 grams of Sweet Onions vs Tomatoes:
Raw Sweet Onions have 1.6 times more Vitamin B6 and 1.5 times more Vitamin B9 than Raw Ripe Red Tomatoes.
While Raw Ripe Red Tomatoes contain more Vitamin A, 4.5 times more Vitamin B3, 2.9 times more Vitamin C, 27 times more Vitamin E and 26.3 times more Vitamin K than Raw Sweet Onions.
Both Raw Sweet Onions and Raw Ripe Red Tomatoes have similar amounts of Vitamin B1, Vitamin B2 and Vitamin B5 per 100 g.
Both Raw Sweet Onions as well as Raw Ripe Red Tomatoes have insufficient amounts of Vitamin D in 100 g.
Comparing minerals per 100 grams for Sweet Onions vs Tomatoes:
Raw Sweet Onions have 2 times more Calcium than Raw Ripe Red Tomatoes.
While Raw Ripe Red Tomatoes contain 1.5 times more Manganese, 2 times more Potassium and 1.3 times more Zinc than Raw Sweet Onions.
Both Raw Sweet Onions and Raw Ripe Red Tomatoes have similar amounts of Copper, Iron, Magnesium, Phosphorus and Water per 100 g.
Both Raw Sweet Onions as well as Raw Ripe Red Tomatoes have insufficient amounts of Selenium in 100 g.
Comparison of macro-nutrients per 100 grams:
Raw Sweet Onions have 1.8 times more Energy, 1.9 times more Carbohydrate, 1.9 times more Sugars and 1.5 times more Fructose than Raw Ripe Red Tomatoes.
While Raw Ripe Red Tomatoes contain 1.3 times more Fiber than Raw Sweet Onions.
Both Raw Sweet Onions and Raw Ripe Red Tomatoes have similar amounts of Protein per 100 g.
Both Raw Sweet Onions as well as Raw Ripe Red Tomatoes have insufficient amounts of Fat, Cholesterol, Glucose and Sucrose in 100 g.