The reason orange juice could do this is because its acidic. By acidifying the blood and urine, it speeds up the clearance rate of some medications. However, we are talking large doses here. For instance, you can clear the blood and urine of amphetamines three times faster by taking a huge dose (about 20 gallons of orange juice) of Vitamic C aka Asorbic Acid. They also use it to clear the blood in the case of PCP overdoses. But I don't think this will have any effect on anything. Grapefruit Juice works by inhibiting the production of CYP450, which is an enyzme linked to the metabolism of various drugs. Some addicts use it to prolong or potentiate opiate and benzo highs. But again, I don't think these things have any effect beyond being psychosomatic. The doses needed are huge.
Okay that was long, in essence, drink and eat what you want. The most important thing is to eat well and try to take in good proteins and avoid tobacco. It is thought, through various research studies, that one pack a day renders birth control ineffective in women. Now what that means for Trans women remains to be seen as I smoke and I have 32D boobs. I recently got my insurance to cover both spiro and estrogen, they didn't before for one reason: I didn't ask. I'm such an idiot. My tansition would be so much further along if I just asked. The reason: my HRT has been eratic cause of finincial issues and the most important thing to do for a good transition is to take a consistent dose. Even if it's low. I went two months without spiro unnecessarily. My T stil stayed undetectable though! But I did start becoming aroused again...oh God it was disgusting. But now I'm soooooooooooooo happy as the one thing I won'thave to worry about it affording my E and AAs.