Am I over-reacting??

Crystal Light...we all know it and love it. Only 5 calories per serving, no caffeine, low in sodium, it's great. And my kids can't tell the difference from the Fruit Punch flavor and Kool-Aid. Another plus. It's lately become a staple at many meals in our home. But Josh has taken our love of Crystal Light to another level. Seriously...I'm concerned and frankly a little embarrassed. It has become his personal mission to try all the different flavors. He comes home from work with those "On-the-Go" packs and can hardly wait to tell me the latest flavor that he's discovered. No joke. He appreciates the simple things like the "On-the-Go" packs for an "On-the-Go" guy like himself. I just recently discovered a stash of "On-the-Go" packs in his car. Seriously like 3-4 boxes of different flavors available at his disposal. He just mixes them up in a water bottle and he's a happy camper. Look, I'm happy he's drinking healthier,but I think it's a little "girly" that he carries those around. I've expressed my concerns about him carrying around his Crystal Light drinks everywhere he goes, but he says he is secure in his manhood and isn't at all worried about it. It's nice he's being health conscience, really, I think it's great, but my feelings are--let's keep it at the dinner table.