What Is Tempeh?
Don't Be Afraid of Tempeh — Here's Why You May Like It More Than Tofu
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As you can see from the nutritional info on the back of this Trader Joe's Organic 3-Grain Tempeh, it's a great source of protein, with 20 grams for half the package (a four-ounce serving). If you compare that with half a block of firm tofu, tofu has slightly less with 18 grams.
Tempeh also offers tons of fibre with nine grams; tofu barely offers any, so you'll feel more satiated after eating tempeh compared to tofu. When it comes to carbs, tempeh has over three times the amount as firm tofu (16 grams vs. 4.5 grams). But all things considered, 16 grams for a serving isn't that much (one cup of cooked quinoa has nearly 40 grams of carbs).
Note that tempeh is also higher in calories with 240 per serving, while half a block of tofu has 158 calories. All in all, tempeh has a heartier texture than tofu, more fibre, and more carbs, so you may prefer eating it to feel fuller longer and to have more energy.