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# **Why Were We So Thin in the 70s? (The Truth Will Surprise You) 🤔😱**
So what happened? Why were we so thin in the 70s? The answer isn’t just “we ate less” or “we exercised more.” It’s a complex mix of culture, lifestyle, food environment, and biology—and some of it might surprise you.
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## **1. Portion Sizes Were Smaller**
One of the most straightforward reasons people were thinner in the 70s? **Portion sizes were tiny compared to today.**
A standard serving of soda, for example, was 6.5 ounces in the 1970s. Today, the average soft drink is more than 20 ounces. A “small” fast-food meal then was smaller than what even children get today.
Calories add up, and when meals are three times bigger than your body needs, even the most disciplined eater struggles to maintain a healthy weight.
In short: **we naturally ate less because everything was portioned for a smaller appetite.**
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