14 Super Sources of Clean Protein

Spirulina powder

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5. Spirulina

You may not have heard much about this super food, but it truly is. In its natural state it is up to 71 percent complete protein.

This is higher than any other unprocessed, natural food. Spirulina is almost 100 percent complete digestible!

Be sure that spirulina is collected from uncontaminated waters.

Although it can’t be your main source of protein because it would be virtually impossible to consume sufficient quantities, it’s an important, super healthy food source you shouldn’t do without.

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