Google says: Peanut butter is also a good source of copper, a mineral that helps maintain our bone health, immune function, and blood vessels. Some research suggests that getting enough copper in your diet may reduce your risk of osteoporosis and heart disease.

I love Santa Cruz peanut butter - but only the kind you have to stir b/c the stir-less kind has palm oil. Might be a nice compromise for you! 🙂

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