I am posting this in response to a post by 'Cancer Treatment' since I couldn't work out how to reply to the original post "Re: How broccoli fights prostate & other cancers". I think that the juice of broccoli sprouts is best, since the juicing action releases the isothiocyanates.
What is really important is the amount of sulforaphane and its isothiocyanates. Sulforaphane comes from the breakdown of glucoraphanin using the myrosinase that is in the plant. When the plant is crushed the glucoraphanin mixes with the myrosinase to yield isothiocyanates; the magic ingredient.
What to watch out for is:
Some varieties of broccoli have very little glucoraphanin so you could eat a ton of broccoli sprouts yet still gain little or no sulforaphane.
Likewise, if the glucoraphanin does not get it on with the myrosinase within minutes it doesn’t work – you will have no sulforaphane.
If you buy an extract that is just glucoraphanin without myrosinase, it will never give you sulforaphane. OK, you may just have a little bit of myrosinase sitting in your gut but not nearly enough.
Natural remedies are best taken as whole foods, since the whole foods contain all the micronutrients and enzymes that help us assimilate the vital anti-cancer ingredients.
I hope this helps add perspective on this interesting topic.