More research isn't a bad thing, but this really isn't news. If you're a nerd who's into lifting you'd already know that soy protein is a top tier source of all the important amino acids for muscle gain. And it's cheaper than whey.

It's also not very popular because the manosphere tells men that consuming it will feminize them. Yes, really. They took the "soy boy" thing very literally and ran with it off the deep end.

Just to be clear, this is about supplements. It’s doesn’t say anything about differences in dietary protein.

The actual title:

Similar effects between animal-based and plant-based protein blend as complementary dietary protein on muscle adaptations to resistance training: findings from a randomized clinical trial

Now let's have a control group with no supplements

There was no control group doing the workouts without protein supplements?

Also FYI: if you are getting enough calories, you are almost certainly also getting enough protein. The RDA for protein is quite low, 0.8g per kg bodyweight, or about 10% of your caloric intake. You can meet this by eating just grains. However, as mentioned in the linked source, the RDA is intended to prevent nutrient deficiencies, not provide an optimal level of intake.

I bet the lead count in their system changed.

https://www.consumerreports.org/lead/protein-powders-and-shakes-contain-high-levels-of-lead-a4206364640/

It doesn't look like they had a control group of people doing the strength training without any protein supplement. I would assume that group would also perform the same.

Study does not say anything about the diet of the subjects. This would make more sense if it was 22 vegan men with plant-protein supplement and 22 carnivore diet men with animal-protein supplement and a control of typical diet with no supplement.

Amino acids are amino acids. Some are harder to get from plants than others.

I am slightly surprised that both groups lost a similar amount of fat.

Oh, right, supplements. So similar amount of fat as well. Well, kind of an obvious result and doesn't really say a whole lot about the differences between plant- and protein-based diets.

Might want to look into the levels of lead in their blood.

which supplements has the highest lead though

OK that does not mean that much though because the sample group is way too small to draw some real hard science out of it.

Saying that as a plant protein lover.

I would imagine the plant based group had more heavy metals, if given most brands