Natural stuff might cause side effects if taken in conjunction with medicines of another kind. Don't ever assume natural is always safe every time.
I can't tell you about all those ingredients and possible interactions with other things, but if you're unsure, take care.
Also if you've got a problem with parasites, you could consider something like microbiotic supplements, like Lactobacillus, chewy Acidophilus tablets, Yakult, etc, as some things like C-difficile can be heightened by low Gut flora and Gut flora can be impacted on by anti-bioitics.
Things like Whipples disease migh cause issues, as the bacteria Tropheryma Whippelli, damages the bodies ability to digest Carbs and fats, which would cause problems with things like lethargy, sleep issues, hard stools, Cholesterol elevation, possible Nervous system issues etc.
If you have ever experienced things relating to IBD, (Irrritable Bowl Disorder), type systems that would manifest in conditions like Ulcerative Colitis, Coeliacs Disease and Chrons, then avoiding Dairy, Gluten and Wheat might help.
If there is no such problem in that respect, then don't eliminate such foods unless you wish to or already have.
There is also a substance you might be able to buy supplementally, called Ficin, which is a Protease, (Protein digesting enzyme), which has the unusual ability of digesting 2-3 types of intestinal worms. You would need to do more research on that, but if it's not available supplementally, eating Figs would do it.
So there may be more going on than you think, or perhaps only as much as you may think, but you might want to be doubly careful about how your issues occur, just incase you've not uncovered the whole story