There is a reference book that I refer to although I borrowed my coach's one. It's not available in Malaysia so would have to order online. The topic is "The Fungal Link."

http://knowthecause.com/
http://www.knowthecause.com/index.php/know-the-cause-page
The main reason I take probiotics is to manage my fungal infection. I have that and I can really really feel it when it's a bad time i.e. too much fungal growth. But it's not only probiotics that I take. The food I choose to eat are also selective such that :
-it doesn't flare up my fungi infection in my gut which will in turn flare up everything else (dandruff, ulcers)
-it helps to promote probiotic population in my gut

I used to have IBS syndrome but not anymore. It only comes back when i take antibiotics.

Gotta take a wide variety & large amounts of organic yoghurt, tempeh, kefir, etc. including prebiotics.

Consuming a good quality probiotic supplement is much easier, and arguably more effective.

I guess it's somewhat related to yoghurt education. Basically NATURAL yoghurt is a good and healthy, but doesn't have the touted therapeutic benefits as marketers would like to portray. 

About processed food, I do agree that certain processed food are bad, but not all. For example green powders, I would be hard pressed to even say that one that has its ingredients all organically sourced, freeze dried, no unnatural additives, no fillers, practices full disclosure, and conducts independent testing on its own products, and not sticky about publishing its Certificate of Analysis whenever requested, would be any more detrimental than eating a good cut of pasture raised grass fed beef. The other alternative to that would be to source a few types of organic vegetables from the nearby store and juice them all up everyday. And you gotta buy them quite regularly, and in large amounts to meet your micro-nutrient requirements.  It's about finding the right balance between employing both sides of the coin for wellness, i.e. science and nature.

By the way since you're in Sabah, that brings up the topic of Avocados. I'm a big fan of Avocados due to its good amounts of fats and carbs. However its quite tough to find a local farm in West Malaysia. It's quite difficult to find cheap ones here. Any tips?

As for earthing, thanks for the intro. Will look into it. Yes there're various types and approaches to meditation. I would recommend the Buddhist approach, Vipassana meditation for your regular practice. If you're a so called staunch Christian and feel that it will deteriorate your faith then perhaps you can compromise and try the Centering Prayer by Thomas Keating or Thomas Merton. I have tried chakra meditation too, and its strongly derives from Hindu culture. In very basic terms the body have lots and lots of energy centres, but there are 7 main chakras that have been identified to be the strongest centres. It is said that imbalance in each one of this chakra leads to various disorders, ranging from hyperactivity, to lethargy, to emotional disorders, sicknesses, etc. Therefore chakra meditation, guided by a qualified trainer, will help you to neutralise either a blocked, or over-active chakra. I have a short one-page intro write up on this meditation and can send it to you if you want.

And I went for a similar session the other day, called Reiki healing, where a trained practitioner helps you energise and or neutralise your energy centres on whichever part of your body/aura that he feels is needed. I was seated there, trying to meditate while the practitioner did what she had to do on me. At one point during meditation I felt some intense pressure on my forehead, somewhat like a slight headache in the forehead. This area is usually known as the third eye chakra. I must have been doing my meditation wrongly this time as I was perhaps too focused on this area due to the stress levels before I commenced, and I should have focused on the heart chakra area which I usually do.

After the session I caught up with the practitioner and asked if there were anything she felt while healing me.

She said there was nothing much, the energy in the rest of my body was fine, except that she felt that there was a lot of activity in my third eye area, which isn't so desirable, and I should ground myself more.  Coincidence?    Anyway, grounding can be just as simple as placing your bare hands and feet on the ground, or touching more trees and plants. I also heard of people who have learnt how the art of harnessing energy, whenever they visit certain holy temples they look for the oldest tree around and touch it and meditate under it. Perhaps earthing is applicable here too but I have yet to read up on it.