I have a pint of homogenized whole milk with two teaspoons of instant coffee, each morning for breakfast. Most times, I have a heaping teaspoon of whey protein/chocolate pudding powder in there, too.
I'm 58 and will shortly do my first 50-mile run in over a decade, on the way to a 100-mile run sometime in calendar 2019. I weigh 10 lbs over what I did as a high school graduate, 20 lbs over the boxing/wrestling I did as a college junior, and (back to) 10 lbs over my last 100-mile run, 2005. My most common lunch over the past 30+ years has been a generic microwaved beef+bean burrito. Most common dinner has been a ramen buried in chopped veggies (whatever was on sale). Amongst other 'additives' I consume a multi and a glucosamine daily.
No allergies. Rarely sick. (Crosses fingers.) In 40+ years, have never "filtered" backcountry water when hiking. (Thousands of miles...)
If you guys want to sip a bit of heaven, BTW, go to a farmers' market and pick yourselves up a gallon of unpasteurized, non-homogenized milk (for, like $8-$10/gallon, no lie.) The ones marked loudly with NOT FOR HUMAN CONSUMPTION. Give it a shake or two, and then pour some HEAVEN.