Planet Money

The M&M anomaly (Classic)

Despite costing the same price, a pack of peanut butter M&amp;M's weighs 0.06 ounces less than a pack of milk chocolate M&amp;M's. A trade secret explains why. | Subscribe to our weekly newsletter <a href="https://www.npr.org/newsletter/money?utm_source=rss_feed_copy&amp;utm_medium=podcast&amp;utm_term=planet_money">here.</a> Learn more about sponsor message choices: <a href="https://podcastchoices.com/adchoices">podcastchoices.com/adchoices</a> <a href="https://www.npr.org/about-npr/179878450/privacy-policy">NPR Privacy Policy</a>

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