The studies on elderberry are questionable but I can no longer take NSAIDs and possible Tylenol so I'm stuck with trying natural products.My husband came down with a nasty flu 6-7 days ago. I started taking these a couple of days after he got sick (he won't take them). I finally got sick yesterday. I had a mild fever, body aches, headache, a bit of a cough, very low energy and weakness. Classic flu. It hit hard and fast in the middle of the day and early in the evening and by night time I was already feeling a lot better. Woke up this morning feeling pretty normal, just remnants of a headache. My husband is still stick but feeling a lot better.This is my 2nd flu using elderberry (used a different product before) and I had similar results the first time so I think I'll keep these around!I should also note that these are super tasty and I really like the texture! They're not too sweet. It's hard not to snack on them.