Soy Protein
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What is Soy Protein?
Soy protein is a form of protein derived from soy. Soy protein isolate is made from defatted soy flour which has had most of the non-protein components, fats and carbohydrates removed. Soy protein concentrate is about 70% soy protein and is basically soybean without the water soluble carbohydrates. It is made by removing part of the carbohydrates (sugars) from dehulled and defatted soybeans.
Where to Buy Soy Protein Cheap:
| Product Name | Size | Lowest Price | Main Ingredient / Dollar | Go to Cheapest Store |
| Optimum Nutrition 100% Soy Protein | 2 Pounds | 48.73 Grams of Protein per dollar |  | |
| Universal Nutrition Advanced Soy Pro | 1.5 Pounds | 38.71 Grams of Protein per dollar | | |
| Prolab Pure Soy | 1 Pounds | 37.54 Grams of Protein per dollar | | |
| Nature's Plus Spiru-Tein Shake Powder | 1.05 Pounds | 14.92 Grams of Protein per dollar | | |
| Nature's Plus Spiru-Tein Shake Powder | 2.1 Pounds | 13.62 Grams of Protein per dollar | |
