The most popular plant-based protein (soy) has come under fire a lot in the past few years for possible negative side effects due to phytoestrogen compounds (which mimic estrogen in the body). That being said, from some quick research I have done, It seems that if you kept your soy consumption fairly low, below 25 grams per day, you should be fine.
To improve the protein quality of your smoothie without soy, try using a brown rice or hemp protein. The plant-based protein powder trend is becoming increasingly popular, so you’re in luck!
Here are a few options that seem sound to me: Vega Sports Performance – includes a combination of plant-based proteins to create a complete protein profile.
MRM Veggie Elite – Apparently they increase the amount of protein per serving size and corrected for digestibility to make sure that one serving of their protein powder is equivalent to the protein content of a whey powder. Normally this might result in chalkiness, but some reviewers have said it’s a better tasting choice.
And here’s one more just for fun – a Pea protein from Now Sports. This one I would definitely make sure to use in a smoothie with other fruits and veggies to ensure you’re getting a complete protein profile.
As for higher protein additions to the smoothie, kale and spinach are always great options. Oats are also surprisingly high in protein (and fiber) – but also carbs too, of course.
Fruits rarely contain much protein, but guavas have the most protein per gram of fruit, so it makes a solid addition!
I hope this helps. Thanks for stopping by David, and let me know if you have any more questions!
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