How long does collagen take to work on knees?

Four structures, four clocks: what the trials read, and when

How long does collagen take to work on knees is a question with a hidden plural, because a knee is not one structure but at least four that hurt in different ways, and the collagen trials, such as they are, ran a different clock on each of them, so the honest page separates the knee before it answers. The first structure is the patellar tendon, the thick band below the kneecap that hurts at the bottom of a squat and on stairs, a tendinopathy in lifters and jumpers. The collagen evidence here is the pre-loading protocol, 15g of gelatin or hydrolysed collagen with vitamin C about an hour before the loading session, which acts per session on a blood marker of collagen synthesis in the Baar trial, and the one tendon outcome trial, in the Achilles rather than the patellar tendon, which gave 2.5g a day beside six months of calf strengthening and read its function score and return to running at six months; so the tendon clock is per session for the marker and six months for the only outcome anyone has measured, always beside a loading programme. The second structure is the joint itself, the cartilage surfaces and the synovium that ache along the joint line, stiffen in the morning and complain after a long walk, the territory of early osteoarthritis. The collagen evidence here is the knee osteoarthritis trials, mostly at around 10g a day of hydrolysed collagen, which read pain and function questionnaires at twelve weeks and again at twenty-four and found modest gains against placebo in small trials, while the imaging arms found no change in cartilage thickness or quality at any point; so the joint clock is twelve weeks for the first questionnaire reading, twenty-four for the second, and never for the structure. The third structure is the ligaments, the medial collateral along the inside, the cruciates in the middle, which hurt after a twist and may let the knee give way. The collagen evidence here is a single outcome trial, and it is not in the knee: 5g a day for six months in athletes with chronic ankle instability improved perceived stability and reduced re-sprains against placebo, small and manufacturer-funded, read at six months; so the ligament clock is six months, borrowed from another joint. The fourth structure is the bone beneath the cartilage, which aches deeply in later osteoarthritis and in which density matters. The collagen evidence here is one twelve-month trial of 5g a day in postmenopausal women that found a small gain in spine and hip density against placebo, read at twelve months; so the bone clock is a year. Four structures, four clocks, and a reader who asks how long without saying which knee they have cannot be given a number.

Which knee you have, how to know whether anything worked, and the honest habit

Which knee the reader has is therefore the first job, and a few questions sort most cases before any professional is involved. Pain at a point below the kneecap, worst at the bottom of a squat, on stairs down and after sitting, in a lifter or a jumper, is the patellar tendon and belongs on a loading programme, with the protocol as a possible adjunct beside it. Aching along the joint line, stiffness for a few minutes in the morning, swelling after long walks and crepitus, in a reader past forty, is the joint and its cartilage, where the twelve to twenty-four week questionnaire clock applies and where the levers with the largest evidence are weight, since each kilogram lost takes several off the knee per step, and strengthening of the muscles around it. A knee that twisted, swelled quickly and now gives way is a ligament or a meniscus and is a clinician's assessment before it is anyone's supplement question. A hot, swollen knee, stiffness lasting an hour or more in the morning, or pain at rest and at night is a doctor's assessment, since those are not the patterns of load or wear. Having placed the knee, the reader faces the harder problem of knowing whether the collagen did anything, because knee pain is the territory where the placebo response is largest: in the knee osteoarthritis trials the placebo arms improved substantially on the same questionnaires, pain fluctuates with weather, activity and mood, and a reader's memory of how the knee felt twelve weeks ago is the least reliable instrument in the house. The method is a diary, and it is the honest page's real answer to how long: before the first capsule, write down a pain score out of ten for the worst moment of a typical day, the number of stairs or minutes of walking before the knee complains, and the morning stiffness in minutes, then record the same three numbers once a week on the same day, and read the trend at twelve weeks and again at twenty-four, which are the trials' own reading points. A trend that improves while nothing else changed, no new programme, no weight lost, no season turned, is the best evidence a single person can get; a trend that does not move is a reason to stop paying, and a trend that improves while a loading programme or a weight loss also ran belongs to the programme first. The worked example is the habit a diary can be run beside, stated on its true terms: two capsules, 1200mg hydrolysed type 1 marine collagen with 12mg vitamin C at 15% of its reference value plus zinc, 120 for £16.99 at 28p a day, lab tested and UK made, below the 10g the knee trials used and the 2.5 to 15g research band generally, carrying vitamin C's contribution to normal collagen formation for the normal function of cartilage and bones and no knee claim, since collagen holds none in the UK. How long does collagen take to work on knees: per session, twelve weeks, six months or a year depending on which part of the knee, and the diary is how you will know.

What to check on the label