Nutrient data for 16126, Tofu, firm, prepared with calcium sulfate and magnesium chloride (nigari) ^a 

Modifying household measures

Nutrient values and weights are for edible portion

Nutrient	Unit	Value per 100.0g	cup 126g	block 81g	block 91g
Proximates
Water	g	84.95	107.04	68.81	77.30
Energy	kcal	70	88	57	64
Protein	g	8.19	10.32	6.63	7.45
Total lipid (fat)	g	4.17	5.25	3.38	3.79
Carbohydrate, by difference	g	1.69	2.13	1.37	1.54
Fiber, total dietary	g	0.9	1.1	0.7	0.8
Sugars, total	g	0.60	0.76	0.49	0.55
Minerals
Calcium, Ca b	mg	201	253	163	183
Iron, Fe	mg	1.61	2.03	1.30	1.47
Magnesium, Mg b	mg	37	47	30	34
Phosphorus, P	mg	121	152	98	110
Potassium, K	mg	148	186	120	135
Sodium, Na	mg	12	15	10	11
Zinc, Zn	mg	0.83	1.05	0.67	0.76
Vitamins
Vitamin C, total ascorbic acid	mg	0.2	0.3	0.2	0.2
Thiamin	mg	0.060	0.076	0.049	0.055
Riboflavin	mg	0.063	0.079	0.051	0.057
Niacin	mg	0.101	0.127	0.082	0.092
Vitamin B-6	mg	0.071	0.089	0.058	0.065
Folate, DFE	µg	19	24	15	17
Vitamin B-12	µg	0.00	0.00	0.00	0.00
Vitamin A, RAE	µg	0	0	0	0
Vitamin A, IU	IU	0	0	0	0
Vitamin E (alpha-tocopherol)	mg	0.01	0.01	0.01	0.01
Vitamin D (D2 + D3)	µg	0.0	0.0	0.0	0.0
Vitamin D	IU	0	0	0	0
Vitamin K (phylloquinone)	µg	2.4	3.0	1.9	2.2
Lipids
Fatty acids, total saturated	g	0.863	1.087	0.699	0.785
Fatty acids, total monounsaturated	g	1.226	1.545	0.993	1.116
Fatty acids, total polyunsaturated	g	1.794	2.260	1.453	1.633
Cholesterol	mg	0	0	0	0
Other
Caffeine	mg	0	0	0	0

Footnotes
^b  Manufacturers use either magnesium chloride (nigari), calcium sulfate, or both in varying quantities to precipitate the protein. Calcium and magnesium contents will vary accordingly.
^a  Descriptive terms (soft, firm, extra firm) vary in usage between manufacturers as there are no standards for the various types of tofu.