Study	Participants	Intervention (Type/Dose)	Period (weeks)	DO (%)
Cúneo, F. et al[@408520]	82 postmenopausal women with a men age of 57,3 ± 4,8 years and osteopenia	10g/day type I HC	24	13,4
McAlindon, T.E. et al[@408548]	30 participants aged 49 years or older with mild to moderate knee osteoarthritis.	10g/day COL	48	3,3
Trč, T., Bohmová, J.[@408546]	100 participants aged 40 years or older with knee osteoarthritis (OA).	10g/day COL	12	7
Bruyère, O. et al[@408523]	200 participants aged 50 years or older with joint pain.	1,2g/day HC	24	28
Jiang, J.-X. et al[@408544]	100 women aged between 40-70 years with mild to moderate knee osteoarthritis.	8g/day type I COL	24	6
Zdzieblik, D. et al[@408540]	60 men >65 years with important muscle strength or physical performance loss in the last 3-4 years	15g/day type I HC + 3-month resistance training	12	11,7
Zdzieblik, D. et al[@408537]	160 physically active participants aged between 18-30 years with knee joint discomfort related to exercise	5g/day CP	12	13,1
König, D. et al[@408535]	131 postmenopausal women with a mean age 64,3 ± 7,2 years and osteopenia	5g/day type I CP	52	22,1
Centner, C. et al.[@408553]	30 healthy men ≥50 years practicing physical activities <60 minutes per week	15g/day HC + low-load training	8	23,1
Clifford, T. et al.[@408554]	24 physically active men with a mean age of 24,8 ± 4,8 years	20g/day CP + muscle stress induce training	1,29	16,6
Dressler P. et al.[@408526]	60 athletes with a mean age of 26.9 ± 9.1 years	5g/day CP + mechanical load	24	16,7
Giglio, B.M. et al.[@408524]	52 overweight women aged between 20-58 years (IMC > 25 kg/m2)	26g/day HC	8	28,8
Jendricke, P. et al.[@408541]	90 pre-menopause women aged between 18-50 years without previous training	15g/day SCP + resistance training 3x/week	12	14,4
Kirmse, M. et al.[@408555]	68 healthy physically active men with a mean age of 24 ± 3 years	15g/day SCP + resistance training 3x/week	12	16,2
Oertzen-Hagemann, V. et al[@408542]	25 male physical education students with a men age of 24.2 ± 2.6 years	15g/day SCP + hypertrophy training 3x/week	12	N/A
Praet, S. et al.[@408556]	20 participants aged between 36-52 years with tendinopathy	2.5g/day CP + calf resistance training	24	10
Jendricke, P. et al.[@408557]	90 healthy women aged between 18-40 years and IMC between 18,5-16 kg/m2)	15g/day SCP + resistance training 3x/week	12	34,4
Oikawa, S. et al[@408550]	11 healthy participants aged between 20-28 years on regular aerobic training	HIIT + CP in 20g after exercise and 40g	1,43	0
Oikawa, S. et al.[@408551]	22 elderly women aged between 60-80 years	30g/2x a day HC	0,86	0
Bongers, C. et al[@408538]	200 participants aged between 50-75 years	10g/day COL	12	17
Nunez-Lisboa, M. et al.[@408558]	9 men aged between 26-40 years	15g/day COL	4	0
Zdzieblik, D. et al[@408545]	218 physically active participants aged between 18-30 years	5g/day HC	12	17,4
Zdzieblik, D. et al[@408539]	120 overweight men aged between 30-60 years	15g/day SCP	12	19,1
Centner, C. et al.[@408559]	30 healthy physically active men aged between 18-29 years	15g/day SCP + high-load resistance training	0,15	0
Jerger, S. et al[@408549]	40 healthy men aged between 18-40 years	5g/day COL + resistance training	14	32,5
Balshaw, T. et al[@408552]	52 healthy men aged between 18-40 years	15g/day CP + resistance training	15	25
Bischof, K. et al[@408525]	75 healthy sedentary men aged between 18-40 years	15g/day CP + training	12	26,7
Hilkens, L. et al[@408536]	17 healthy physically active men with a mean age of 24 ± 4 years	20g/day COL + 3x/day high-load training	0,43	17,6
Jerger, S. et al[@408543]	50 healthy men aged between 18-40 years	5g/day CP + high-load resistance training	14	38
Kuwaba, K. et al.[@408560]	20 healthy men aged between 40-65 years	10g/day CP + exercise	12	10
Kviatkovsky, S. et al.[@408561]	86 physically active participants aged between 40-65 years	10g/day or 20g/day CP	36	31
Thomas, D. et al.[@408562]	55 recreative athletes aged between 18-55 years with early osteoarthritic changes	COL or COL+exercise	12	9,1
Jerger, S. et al.[@408563]	50 healthy physically active men aged between 18-40 years	15g/day SCP + training program	12	36
Bischof, K. et al[@408529]	75 healthy men aged between 18-40 years not exercising more than 3 hours a week	15g/day CP + training	12	27
Devasia, S. et al[@408547]	115 participants aged between 30-65 years with diagnosis of osteoarthritis and moderate exercise levels	2,5g/day type J COL, 5g/day type J COL, 10g/day type J COL or 10g/day bovine COL	12	7,8
McKendry, J. et al.[@408564]	45 healthy and nonsmoker men aged between 68-76 years	25g/2x a day COL + Controlled diet	2,14	31,1