Does Marriage Cause Weight Gain and Obesity? | How Can Married People Maintain a Healthy Weight?

According to SAEDNEWS, citing Hamshahri Online, however, recent research suggests that marriage may also be linked to weight gain and higher obesity rates, creating long-term health challenges for couples.

Does Weight Increase After Marriage?

According to Healthline, a study involving more than 8,000 people found that married women gained an average of about 24 pounds (11 kg) within the first five years of marriage. The same trend was observed in men, suggesting that living with a spouse increases the likelihood of weight gain in both genders.

Researchers also found that happier and more satisfied couples tend to gain more weight compared to less satisfied couples. This is explained by reduced motivation to maintain weight when individuals feel secure and accepted in the relationship.

The same study showed that weight gain can be “contagious” between spouses, a phenomenon known as concordance. If one partner gains weight, the other’s risk of gaining weight increases by up to 37% due to shared behaviors such as diet and lifestyle.

Another Polish study published on WebMD found that married men are about three times more likely to be obese compared to single men, based on data from 2,405 individuals with an average age of 50.

The study also showed that marriage increases the likelihood of weight gain by 62% in men and 39% in women. Each year of marriage increases the risk of weight gain by 3% in men and 4% in women, while obesity risk increases by 4% in men and 6% in women.

However, other studies show that married couples often eat healthier than single individuals, but pay less attention to body mass index or calorie intake. On the other hand, physical activity tends to decrease after marriage, possibly due to reduced concern about appearance or increased daily responsibilities.

Why Does Weight Increase After Marriage?

Researchers believe weight gain after marriage is not caused by a single factor, but by a combination of lifestyle changes. After marriage, couples tend to:

• Spend more time at home and eat together

• Reduce social and physical activities compared to before marriage

• Become less strict about weight control due to emotional stability and acceptance

Although this emotional security is psychologically beneficial, it may sometimes lead to neglect of healthy habits.

Increased responsibilities—such as work pressure, household management, and childcare—also reduce time available for exercise or healthy meal planning. Some couples rely more on fast food or processed meals, leading to higher calorie intake.

How Can Married People Maintain a Healthy Weight?

Experts recommend several practical strategies:

• Engaging in joint physical activity such as walking or home workouts

• Eating more home-cooked meals and reducing fast food consumption

• Choosing healthy snacks like fruits, vegetables, and nuts

• Regular health checkups and mutual support for maintaining goals

Balancing Happiness and Health

Some studies suggest marriage may be associated with weight gain, but this does not mean marriage causes poor health. In fact, many married couples benefit from emotional and social support, which improves mental and physical well-being.

The real challenge is maintaining balance between emotional stability and a healthy lifestyle through proper diet and regular physical activity, so that marriage becomes a source of health support rather than a burden.