Glucosamine supplementation looked decidedly unimpressive a decade ago and I don’t imagine anything has changed since.

https://sciencebasedmedicine.org/?s=glucosamine

Still, I took a look at Dr Stanfield’s youtube channel (because nothing says “primary source” like a YT link):

    As a side note, here's all the supplements I currently take (affiliate links):
    WAKE UP:
    • Sulforaphane 8mg ( https://amzn.to/… )
    • Niacin 50-500mg ( https://amzn.to/… ) - start low to help with flushing
    WORKOUT:
    • Creatine 2.5g before & after ( https://amzn.to/… )
    BREAKFAST:
    • Vitamin K2 MK-7 90μg ( https://amzn.to/… )
    • Vitamin D3 3,000 IU ( https://amzn.to/… )
    • Omega-3 (DHA/EPA) two capsules ( https://amzn.to/… )
    • Trans-Resveratrol 500mg ( https://amzn.to/… or https://cntr.click/… )
    • Pterostilbene 150mg ( https://amzn.to/… )
    • Collagen 10g ( https://amzn.to/… )
    LUNCH:
    • Niacin 50-500mg ( https://amzn.to/… )
    • Trimethylglycine (TMG) 750mg ( https://amzn.to/… or https://cntr.click/… )
    NIGHT (one hour before sleeping):
    • Metformin 1 gram (only on non-workout days)
    • Melatonin 500mcg ( https://amzn.to/… )
    • Magnesium Taurate 125mg ( https://amzn.to/… )
    ONCE I can afford it (will take in the morning):
    • Nicotinamide Mononucleotide (NMN) 1 gram ( https://amzn.to/… or https://cntr.click/… )

Yeah, no. Oversold supplements for the neurotic well are a longtime health grift. 1PPM of actual science and medicine, diluted in 999,999PPM of ego-pampering, holy-rolling religion, and wishful anti-aging crap.

BTW, here’s what your own Cochrane link says, which suggests you didn’t even bother to read it yourself:

“The current evidence does not support the use of antioxidant supplements in the general population or in patients with various diseases.”

IANAD, but I advise you apply some skepticism to that burn ASAP.