Lets compare vitamin content per 1 pound of Natto vs Tempeh:
Natto has 2.1 times more Vitamin B1 and more Vitamin C than Tempeh.
While Tempeh contains 1.9 times more Vitamin B2, more Vitamin B3, 1.3 times more Vitamin B5, 1.7 times more Vitamin B6, 3 times more Vitamin B9, more Vitamin B12 and 40 times more Vitamin E than Natto.
Both Natto and Tempeh have similar amounts of Vitamin K per 1 lb.
Both Natto as well as Tempeh have insufficient amounts of Vitamin A and Vitamin D in 1 lb.
Comparing minerals per 1 pound for Natto vs Tempeh:
Natto has 2 times more Calcium, 3.2 times more Iron, 1.4 times more Magnesium, 1.8 times more Potassium, more Selenium and 2.7 times more Zinc than Tempeh.
While Tempeh contains 1.5 times more Phosphorus than Natto.
Both Natto and Tempeh have similar amounts of Copper, Manganese and Water per 1 lb.
Comparison of macro-nutrients per 1 pound:
Natto has 3 times more Omega 3, 1.4 times more Omega 6, 1.7 times more Carbohydrate, 1.8 times more Sugars and 1.5 times more Fiber than Tempeh.
While Tempeh contains 1.6 times more Saturated Fat than Natto.
Both Natto and Tempeh have similar amounts of Energy, Fat and Protein per 1 lb.
Both Natto as well as Tempeh have insufficient amounts of Cholesterol, Glucose and Sucrose in 1 lb.