Tofu vs Tempeh: Nutrition, Calories & Best Choice

What Tofu and Tempeh Actually Are

Tofu begins as soy milk that is coagulated and pressed into blocks, which is why its flavor is neutral and its texture ranges from silken to extra-firm. Tempeh is made by fermenting whole cooked soybeans with a mold culture until the beans knit into a dense, nutty cake. The two share one ingredient and almost nothing else in the kitchen.

• Tofu: pressed soy curd sold as silken, soft, firm, and extra-firm; mild, absorbent, and easy to season.
• Tempeh: fermented whole soybeans; firm, savory, and sliceable straight from the block.
• Both are soy foods, but tempeh keeps the whole bean while tofu keeps only the curd.

Side-by-Side Nutrition Table

The nutrition panel attached to this comparison returned 0 for every field on both sides, so no verified numbers are available yet. Every numeric cell below reproduces the panel value exactly and is flagged as an internal placeholder that must not be published. Load USDA FoodData Central values for firm tofu and tempeh before publishing.

Watch out: The nutrition panel for this page returned zero values for both foods, so every number above is an unverified placeholder. Confirm calories, protein, fat, carbs, and fiber against USDA FoodData Central entries before this page goes live.

Tofu and Tempeh Compared for Cooking and Portions

Beyond the nutrient table, the two foods differ in ways that shape how you use them:

• Tofu: neutral flavor absorbs any seasoning; texture range spans silken to extra-firm; widely available and affordable. Downside: bland and watery on its own, tears if handled roughly, and calcium content depends on the coagulant used.
• Tempeh: firm bite holds up on the grill; nutty, savory flavor needs little seasoning; fermented. Downside: assertive flavor divides eaters, some brands add wheat or barley, and it often costs more per pound.
• Best for: tofu in smoothies, soups, scrambles, and stir-fries where you want a blank canvas; tempeh in burgers, grain bowls, tacos, and meal prep where you want a satisfying chew.

Protein Quality and Digestibility

Tofu and tempeh are both complete proteins, meaning they supply all nine essential amino acids your body cannot make on its own. Soy protein also scores well in standard digestibility assessments, which is why it appears so often in plant-based sports nutrition. See the plant protein guide for how soy compares with lentils, grains, and pea protein.

Fermentation is the main processing difference between the two:

• Tempeh's mold culture partially breaks down soy compounds before you eat them, and many eaters report less bloating than with unfermented soy.
• Fermentation lowers phytate, a compound that can bind iron and zinc and reduce how much of them you absorb.
• Tofu is not fermented, so it is usually the milder option for anyone who dislikes tangy or funky flavors.

Exact protein grams per 100 g must come from verified USDA entries rather than from estimates.

Calories, Fat, and Carbohydrates in Context

Tofu is largely water, especially silken styles, so its energy density per ounce is lower than tempeh's. Firm and extra-firm tofu carry more protein and fat than silken, which is mostly water. Tempeh is a pressed whole-bean cake, so it lands denser in calories, protein, and fat for the same weight.

That difference shapes portions rather than health:

• Weight management: tofu's water content lets you fill more of the plate for the same calories.
• Muscle building: tempeh's density makes a protein target easier to hit in one sitting.
• Keto and low-carb: both are low in carbohydrate, and tempeh's higher fat fits a high-fat macro split.

Use the protein calculator to turn a daily target into grams of tofu or tempeh per meal.

Vitamins, Minerals, and Glycemic Index

Minerals are where the two diverge most, and tofu's profile depends on how it was set. Tofu made with calcium sulfate contributes calcium, while nigari-set tofu contributes very little. Tempeh supplies iron, magnesium, phosphorus, and manganese from the intact bean, and fermentation may improve absorption of some of those minerals.

Neither food drives a sharp blood-sugar response on its own:

• Protein and fat slow stomach emptying, so both foods blunt the rise from carbohydrate eaten in the same meal.
• No glycemic index value is listed in the panel for either food, and standard GI tables generally omit them.
• Added sugar is not inherent to tofu or tempeh; sweet marinades and bottled sauces are the usual source.

Per-100 g detail lives on the tofu nutrition page and the tempeh nutrition page once verified values are loaded.

How Each One Fits Your Diet

Verified values are not yet loaded for either food, so the diet labels below are provisional and must be regenerated from the USDA panel before publishing.

• Keto: tofu fits easily; tempeh fits too, but its fat and protein make portions add up quickly.
• Diabetic-friendly: both are low in sugar and slow-digesting when eaten unsweetened and unsauced.
• Weight loss: tofu usually wins on volume per calorie; tempeh wins on satiety per bite.
• Soy allergy: both are off the table, since both are soy foods.

Sodium, Gluten, and Sensitivities

Plain tofu and plain tempeh are low-sodium foods, and most of the sodium in a finished dish comes from brine, marinade, or sauce. Tempeh is gluten free when it is made from soybeans alone, but some brands blend in barley, wheat, or rye, so read the ingredient list if you avoid gluten. Soy is a major allergen, and tolerance of fermented versus unfermented soy varies from person to person. Anyone managing digestive symptoms with a structured elimination protocol should confirm whether soy foods belong in that plan with a qualified clinician rather than switching foods on their own.