Whey Plus Collagen Beat Either Alone in Lifters—With a Catch
Mixing 30 g of whey with 10 g of collagen beat whey alone, collagen alone and placebo on every outcome in a new 8-week trial of resistance-trained men. The stack added 2.66 kg of muscle (by BIA), lifted lumbar spine BMD and improved squat, bench and bone turnover markers. Collagen alone moved bone, and whey alone moved muscle. But with only 40 participants, unmatched protein totals and a surprisingly big BMD jump, there is a catch. Here is what the stack won, who it may suit and who should skip it.
The 15 g Bedtime Collagen Trick That Cut Night Wake-Ups by 27%
Waking up repeatedly through the night can quietly sabotage your recovery, even when training and nutrition are dialed in. A small trial found that 15 g of collagen peptides taken an hour before bed cut polysomnography-recorded awakenings from 29.3 to 21.3, roughly 27% fewer. Participants also scored better on a morning Stroop test. But total sleep time, sleep latency and sleep efficiency didn't budge, and the study involved just 13 men over 7 nights with an industry-supplied product. Here's what the data really shows and how lifters might test it safely.
A 40 mg Collagen Dose Doubled Time to Knee Pain. Here's the Catch
Achy knees under the bar or on the road? One randomized trial found that just 40 mg a day of undenatured type II collagen (UC-II) was linked to knee pain starting later, from 1.4 to 2.8 minutes, and to better knee extension. That is about 250 times less than a typical 10 g scoop of hydrolyzed collagen, and it is a different kind of product. But the study was small, industry-linked, and done in healthy people rather than arthritis patients. Here's what the data show, where the headline needs context, and how to read a label.