The characteristic of being hearty; fillingness; wholesomeness.(noun)
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Use "heartiness" in a sentence
"I attribute its whole grain heartiness to the combination of flaxseeds and whole wheat flour in the dough, although the bread is moister and less crumbly than a completely whole grain bread might be because I included some all purpose flour to try and keep prevent it from getting too heavy."
"His heartiness was a tonic, and her vanity responded to the unaffected admiration in his eyes; but his chief claim to her regard lay in the fact that it was the general, and not herself, whom he endeavoured to propitiate."
"He said it with that curious heartiness which is the reverse of hospitality."