-eliminate sugary fruits and starchy carbs too (low-carb or even keto diet)
Sugary fruits are fine in moderation, and healthy starchy carbs are good because they keep you feeling fuller for longer and make you less likely to snack on junk.
-avoid GMOs at all cost, and go organic wherever you can
There is a grand total of zero evidence to show that GMOs are in anyway harmful or that organic food is anyway more healthy.
-avoid major toxins like aspartame, MSG, fluoride,
All evidence shows that recommended levels of aspartame, MSG, and fluoride are harmless.
If you need antihypertensives, find which types work best for you and cycle between different types (there are like 7-11 types i.e. different mechanisms of action).
This is terrible advice. There is good evidence for which antihypertensive drugs are most effective in particular age groups, sexes, and ethnicities. You should only swap drugs if it is either ineffective or gives you side effects. Cycling between them exposes you to big swings in blood pressure as you stop one and start another, as well as exposing you to multiple side effect profiles, for no benefit.
NaturalNews.com and Mercola.com
These are two of the biggest pseudo-scientific scams out there. They exist only to peddle their incredibly overpriced snake oil.