Lets compare vitamin content per 100 grams of Tomatoes vs Welsh Onions:
Raw Ripe Red Tomatoes have 1.5 times more Vitamin B3 than Raw Welsh Onions.
While Raw Welsh Onions contain 1.4 times more Vitamin B1, 4.7 times more Vitamin B2, 1.9 times more Vitamin B5, 2 times more Vitamin C and 24.5 times more Vitamin K than Raw Ripe Red Tomatoes.
Both Raw Ripe Red Tomatoes and Raw Welsh Onions have similar amounts of Vitamin B6, Vitamin B9 and Vitamin E per 100 g.
Both Raw Ripe Red Tomatoes as well as Raw Welsh Onions have insufficient amounts of Vitamin B12 and Vitamin D in 100 g.
Comparing minerals per 100 grams for Tomatoes vs Welsh Onions:
Raw Welsh Onions contain 1.8 times more Calcium, 4.5 times more Iron, 2.1 times more Magnesium, 2 times more Phosphorus, more Selenium, 3.4 times more Sodium and 3.1 times more Zinc than Raw Ripe Red Tomatoes.
Both Raw Ripe Red Tomatoes and Raw Welsh Onions have similar amounts of Copper, Manganese, Potassium and Water per 100 g.
Comparison of macro-nutrients per 100 grams:
Raw Ripe Red Tomatoes have 1.2 times more Sugars than Raw Welsh Onions.
While Raw Welsh Onions contain 1.9 times more Energy, 1.7 times more Carbohydrate, 2 times more Fiber and 2.2 times more Protein than Raw Ripe Red Tomatoes.
Both Raw Ripe Red Tomatoes as well as Raw Welsh Onions have insufficient amounts of Fat, Omega 3, Omega 6, Cholesterol, Glucose and Sucrose in 100 g.