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Physiology of Body Weight, Weight Gain and Adipose Tissue Background Learn More

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The PEN System is a powerful database delivering evidence-based answers to your practice-based questions.

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Universities, dietetic associations and nutrition professionals around the world use the PEN System.

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New and Upcoming Content

Find the newest and most recently updated content here, along with a sneak peak at what we’re working on!

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New Tools and Resources

View a sample of the latest professional and client tools and resources added to the PEN System.

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Trending Topic News Feed

What is everyone talking about? Trending Topics provide evidence analysis or comment on nutrition topics in the news.

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Feature Topic: Dietetic Practice and the Effects of Climate Change on the Global Food Supply

We recently addressed a Trending Topic on Conflict and the Impact on the Global Food Supply. Climate change can also impact the food supply. Based on...

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Latest in PEN eNews

Inside the pen team Our Challenges in Updating PEN’s Obesity Content Starting in 2019, the PEN Team then started updating our knowledge pathways and...

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