My wife says it’s all the herbs and supplements she’s been making him choke down over the last couple years.
She’s probably correct.
I hate to say it, but herbs and supplements benefit the herb and supplement sellers and producers, and no one else.
In some cases, taking herbs that contain pharmaceutically active components can be dangerous since you have no way of knowing how much of the pharmaceutical component is in the supplement. Otherwise, taking them is probably harmless.
The best thing for health is a proper diet. It must be balanced between the macronutrients (proteins, fats, and carbohydrates) and contain a variety of foods so that you get adequate amounts of micronutrients (vitamins and minerals). Eat different colored fruits and vegetables. Don’t consume more calories than your body requires.