Hi fatheroftwo,
I am so sorry you were diagnosed with PD, it is a bit of a bugger, and yes it does take time to process. but all on this site either have PD or are caregivers.
I was diagnosed about 5 years ago now and luckily my symptoms have progressed slowly.
Remember PD is a weird disease in that it seems to affect everyone in different ways. It is basically like a car, all have wheels, and an engine and a body, but that’s where most similarities end.
Please don’t take account of what you read on the internet by those professing to know all about it. Please treat them like you do Facebook or Instagram, or in fact most mainstream media. It is all bullsh*te unless proven otherwise.
Specific sites by reputable organizations relating to PD and other neuro conditions are obviously ok, but again, remember everyone experiences it differently. Always discuss the situation with your Neuro.
The story about what you should and should not eat because of PD is total tripe. As I said I have had it for over 5 years.
I eat exactly what I have always eaten, including chocolates, bread, cheese cake, I love baked cheese cake, steak, full cream milk etc, basically whatever you like, of course in moderation. Try to keep your weight to reasonable levels. All I can do is try to give an example.
Try to keep your BMI, Body Mass Index, index to below 25.
But always remember muscle weighs more than fat so the BMI is just an outline not an exact standard.
Below is an example how to calculate BMI in metric.
I have also included an example in Imperial for Americans and those who cling to really crazy and really outdated systems.

Example (Metric)
Imperial Formula (US Units)
- BMI = (Weight (lbs) / Height (in)²) x 703
BMI Categories (Adults)
What I am trying to say is eat normally. Your body will tell you if you are having too much or too little of anything.
The most important aspect is exercise. Please understand exercise is imperative to help slow down the progression. Try to exercise at least three to four times a week. A brisk walk is fine as well.
I usually gym three times a week and cycle twice, although in winter the cycling tends to ‘be not worth the effort.
You will notice the difference.
I hope that helps.