Protein powder which contains soy isolate

[shaunuk]

I've just been sold a protein powder at the gym called Provit 85. This supplement is a mixture of different protein types, and contains; whey protein hydrolysate, egg protein and soy protein isolate. It's the soy isolate content that concerns me. There's a lot of controversy over whether soy's phytoestrogens lead to increased estrogen levels in men and also decreased testosterone levels.

The back of the tub suggests 2-3 scoops per day, each scoop containing approximately 30g of the mix of proteins.

Is this powder suitable for guys? Is the (possible) rise in estrogen levels of any significance at all?

cheers,
-shaun

 

[Warboss Alex]

I've just been sold a protein powder at the gym called Provit 85. This supplement is a mixture of different protein types, and contains; whey protein hydrolysate, egg protein and soy protein isolate. It's the soy isolate content that concerns me. There's a lot of controversy over whether soy's phytoestrogens lead to increased estrogen levels in men and also decreased testosterone levels.

The back of the tub suggests 2-3 scoops per day, each scoop containing approximately 30g of the mix of proteins.

Is this powder suitable for guys? Is the (possible) rise in estrogen levels of any significance at all?

cheers,
-shaun

you'll find lots of pro-veggie types touting it as safe to drink but in reality it's not. soy in that amount is not meant for male consumption. even the vegan bodybuilders I know prefer pea protein over soy. unless you want ***** tits, I would personally throw it out.

(cue a lot of 162lb guys saying "it's fine it's fine")

 

[shaunuk]

Right, right, gotcha bud Cheers for the answer

When I'm back in the gym on monday I'll ask to swap it with a non-soy containing supplement. Hell, I didn't even read the front of the tub properly - I'll just stick with whey .

cheers,
-shaun