Does rice protein have a high concentration of arsenic?
The US FDA reported arsenic testing of 12 rice protein powders as follows:


  333863609,
  Dietary Supplements,
  Rice Protein Powders,
  Plant-Based Energizer:
  0.1
  
  333511892,
  Dietary Supplements,
  Rice Protein Powders,
  Protein Energizer:
  0.8
  
  333511937,
  Dietary Supplements,
  Rice Protein Powders,
  Protein Energizer:
  0.9
  
  334620956,
  Dietary Supplements,
  Rice Protein Powders,
  Raw Vegan Chocolate:
  0.9
  
  334094485,
  Dietary Supplements,
  Rice Protein Powders
  Plant-Based Drink Mix:
  1.0
  
  333511880,
  Dietary Supplements,
  Rice Protein Powders,
  Raw Protein:
  1.1
  
  333687971,
  Dietary Supplements,
  Rice Protein Powders,
  High Protein Energy Meal:
  1.4
  
  333687931,
  Dietary Supplements,
  Rice Protein Powders,
  High Protein Energy Meal:
  1.6 
  
  334093871,
  Dietary Supplements,
  Rice Protein Powders,
  Blend of protein, fruits &amp; veggies:
  1.6
  
  334094067,
  Dietary Supplements,
  Rice Protein Powders,
  Chocolate Plant Protein Shake:
  3.7 
  
  334093956,
  Dietary Supplements,
  Rice Protein Powders,
  Blend of protein, fruits &amp; veggies:
  4.4 
  
  333688312,
  Dietary Supplements,
  Rice Protein Powders,
  Organic Meal Replacement:
  5.7 


Where the units are micrograms of inorganic arsenic per serving.