Find out just how much "love weight" the average American gains.

Couple Eating
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If monogamous bliss has gone straight to your hips, you're not alone. A staggering three out of four (79%) Americans are saddled with extra "love weight," new research suggests.

Fox News reports that a Jenny Craig study of 2,000 people in relationships found that the average participant gained 36 pounds since they began dating their current partner—17 of those pounds were packed on in the first year alone.

A majority of respondents (41%) attributed this "love weight" phenomenon to an increase in dining out at the start of a new relationship, while 34% claimed that a boost in ordering takeout or cooking at home while drinking together was the main reason their pants don't fit like they used to. Feeling comfortable and less pressure to look good was cited by 64% of those surveyed.

And it's not just dating that can tip the scale. Marriage is also a recipe for weight gain, with 57% percent of respondents admitting they experience some weight gain within the first year of marriage — 17 pounds on average. Interestingly, men estimate they put on nearly twice as much weight as women during the first year of marriage.

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But love isn't all cupcakes and stretch marks. The data also found that 52% of couples exercise together in order to lose weight. "The data shows that while people have gained weight in a relationship, they are recognizing that they need to lose it, and that is great news for their health," said Monty Sharma, president and CEO of Jenny Craig, told Fox.

At least it's not all bad news!