Table 1 List of retail fish oils tested. Adj, adjusted for labelled n-3 PUFA content to reflect the oxidation products per 300 mg combined EPA + DHA; AV, anisidine value; BBD, time to best before date as per label; PV, peroxide value; RRP, recommended retail price in US dollars per gram of fish oil (equivalent to one capsule in most cases); Totox, total oxidation value. Note: the country of origin reflects the country claimed on the product packaging or by a company representative. It reflects the site of encapsulation or packaging; the vast majority of oils were sourced from South American deep sea fish. International guidelines recommend values for PV, AV and Totox of <5 meq/l, <20 and <26, respectively

From: Fish oil supplements in New Zealand are highly oxidised and do not meet label content of n-3 PUFA

		RRP	BBD	Oil mass per capsule		EPA + DHA per capsule		PV			Adj PV
Code	Country of origin	(US$)	(days)	Actual (g)	% label	Label (mg)	Actual (mg)	(meq/l)	AV	Totox	(meq/l)	Adj AV	Adj Totox
1	Australia	0.14	318	1.064	106.4	300	181	5.43	12.43	23.29	5.43	12.43	23.29
2	Australia/NZL	0.11	321	1.000	100.0	300	173	6.52	3.14	16.17	6.52	3.14	16.17
3	NZL	0.14	553	1.009	100.9	300	181	8.11	37.22	53.43	8.11	37.22	53.43
4	NZL	0.10	561	1.000	100.0	300	174	7.30	4.37	18.97	7.30	4.37	18.97
5	NZL	0.15	349	1.096	109.6	300	170	1.71	19.53	22.95	1.71	19.53	22.95
6	Australia	0.13	438	1.094	109.4	300	185	9.08	13.72	31.88	9.08	13.72	31.88
7	NZL	0.06	765	0.985	98.5	300	174	5.82	5.64	17.29	5.82	5.64	17.29
8	Australia	0.40	495	1.167	97.3	694	495	6.85	30.17	43.87	2.96	13.04	18.96
9	Australia	0.11	587	1.094	109.4	300	182	1.09	24.54	26.72	1.09	24.54	26.72
10	Australia	0.12	800	1.002	100.2	300	175	8.00	6.11	22.12	8.00	6.11	22.12
11	NZL	0.07	969	1.001	100.1	300	146	5.78	6.79	18.34	5.78	6.79	18.34
12	Norway	0.50	739	1.048	104.8	550	176	11.65	21.23	44.53	6.35	11.58	24.29
13	Australia	0.10	404	1.003	100.3	300	176	9.56	5.81	24.93	9.56	5.81	24.93
14	Australia	0.11	587	1.500	100.0	450	274	7.88	3.25	19.00	5.25	2.16	12.67
15	Canada	0.50	249	1.022	102.2	500	458	14.06	5.17	33.28	8.43	3.10	19.97
16	NZL	0.10	341	1.142	114.2	450	247	6.07	31.72	43.85	4.04	21.15	29.24
17	Australia	0.44	310	1.032	103.2	600	423	12.66	28.10	53.42	6.33	14.05	26.71
18	NZL	0.05	796	0.995	99.5	300	170	6.98	4.76	18.73	6.98	4.76	18.73
19	NZL	0.07	614	1.508	100.6	450	294	8.70	40.34	57.75	5.80	26.89	38.50
20	Australia	0.10	766	1.513	100.9	450	243	9.54	4.26	23.34	6.36	2.84	15.56
21	Australia	0.11	857	0.992	99.2	300	169	5.67	6.04	17.38	5.67	6.04	17.38
22	NZL	0.11	521	1.007	100.7	300	167	11.05	8.92	31.03	11.05	8.92	31.03
23	India	0.74	460	0.486	97.2	275	170	18.33	9.28	45.93	19.99	10.12	50.11
24	Australia	0.51	368	1.136	113.6	520	566	4.32	14.91	23.54	2.49	8.60	13.58
25	Australia	0.34	156	1.037	100.1	521	447	15.59	4.91	36.09	8.98	2.83	20.78
26	Australia	0.35	187	1.347	112.2	600	228	19.82	32.36	72.01	9.91	16.18	36.00
27	Norway, bottled in NZL	0.07	826	1.000	100.0	300	156	5.02	8.87	18.90	5.02	8.87	18.90
28	NZL	0.23	732	0.996	99.6	300	431	4.97	8.69	18.64	4.97	8.69	18.64
29	USA	0.51	793	1.190	99.2	600	523	7.47	8.94	23.89	3.74	4.47	11.94
30	NZL	0.22	900	1.514	100.9	900	806	4.97	72.63	82.58	1.66	24.21	27.53
31	USA	0.42	641	1.214	101.2	191	230	7.50	4.51	19.52	11.78	7.09	30.66
32	NZL	0.54	887	0.956	95.6	425	348	33.34	2.98	69.67	23.54	2.10	49.18
33	Australia/NZL	0.28	768	1.022	98.8	600	?	11.61	17.34	40.55	5.80	8.67	20.28
34	Australia/NZL	0.24	367	1.543	99.4	900	?	8.72	13.01	30.46	2.91	4.34	10.15
35	Norway	0.77	611	1.048	104.8	550	?	12.75	17.15	42.65	6.96	9.35	23.26
36	NZL	0.10	273	1.142	114.2	300	?	3.33	18.65	25.32	3.33	18.65	25.32

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