Effects of fatty fish vs lean fish and cardiovascular disease.


Fatty fish, lean fish and total cardiovascular disease (CVD).

Data from one cohort examining men only was found (Virtanen JK [14]). No significant effect of dark meat fish consumption on total cardiovascular disease was found at any level of consumption. No data was provided about lean fish consumption.

Prospective studies of fatty vs lean fish and total cardiovascular disease:
AuthorCohort nameCasesEnd pointRelative Risk (RR)
for fatty fish
Relative Risk (RR)
for lean fish
14) Virtanen JK (2008)The Health Professionals Follow-up Study3,639RiskRR = 1.10 (0.93-1.29; P = 0.35).-



Fatty fish, lean fish and coronary heart disease.

Data about fatty fish consumption was provided by 8 cohorts, including 6,876 + X cases (no amount of cases was defined in one subcohort: Hu FB [14]). And data about lean fish consumption was provided by 5 cohorts, including 5,054 cases.
Results: Significant protective effects of fatty fish consumption were found in 2 European subcohorts (Oomen CM [1] among Italian men only; Bjerregaard LJ [34] among men only). In the first subcohort, this effect was found at any level of consumption. A significant protective effect in the latter subcohort was found at intake levels of 7-11 g (0.5 serving/week) and up. No other associations were found at any level of consumption.
No effects from lean consumption were found at any level of consumption. Effect sizes were identical for fatty fish intake and lean fish intake (RR = 0.93).
Conclusion: Significant protective effects from fatty fish consumption were restricted to findings from 2 European subcohorts, one of which was of very small size. Inconclusive evidence was found for an association between any level of fatty fish or lean fish consumption and coronary heart disease risk. Inconclusive evidence was found that effects differ between fatty fish and lean fish consumption.

Prospective studies of fatty vs lean fish and total coronary heart disease:
AuthorCohort nameCasesEnd pointRelative Risk (RR)
for fatty fish
Relative Risk (RR)
for lean fish
46) Manger MS (2010)The WENBIT210RiskNo association.No association.
34) Bjerregaard LJ (2010)The Diet, Cancer and Health Cohort854 men, and

268 women
RiskMen: HR = 0.67 (0.53-0.85).

Women: HR = 0.78 (0.51-1.19).
Men: HR = 1.02 (0.86-1.32).

Women: HR = 0.78 (0.51-1.20).
31) Ness AR (2005)The Boyd Orr Cohort298MortalityNo association-
22) Hallgren CG (2001)The VIP & The MONICA Study76RiskOR = 0.85 (0.45-1.62)OR = 0.76 (0.42-1.36)
15) Morris MC (1995)The Physician's Health Study279RiskRR = 1.1 (0.6-2.3; P = 0.62)-
14) Bernstein AM (2010)The Nurses' Health Study (women without type 2 diabetes)3,162RiskRR = 0.92 (0.82-1.02; P = 0.13)RR = 0.91 (0.75-1.11; P = 0.74)
14) Hu FB (2003)The Nurses' Health Study (women with type 2 diabetes)Not definedRiskRR = 0.38 (0.05-2.75)-
14) Ascherio A (1995)The Health Professionals Follow-up Study1,543RiskRR = 1.18 (0.95-1.48)-
1) Streppel MT (2008)The Dutch part of The Seven Countries Study336MortalityHR = 0.88 (0.65-1.19)HR = 1.03 (0.73-1.45)
1) Oomen CM (2000)The Finnish and Italian part of The Seven Countries Study242 Finland, and

116 Italy
MortalityFinland: RR = 0.80 (0.51-1.26).

Italy: RR = 0.40 (0.19-0.84).
Finland: RR = 1.08 (0.78-1.50; P = 0.63).

Italy: RR = 0.80 (0.38-1.66; P = 0.57).
Total number of cases:
6,876 for fatty fish, and
5,054 for lean fish
Average RR = 0.93Average RR = 0.93



Fatty fish, lean fish and stroke

Data about fatty fish consumption was provided by 4 European cohorts, including 2,508 cases. And data about lean fish consumption was provided by 3 European cohorts, including 2,423 cases.
Results: A significant protective effect of fatty fish consumption was found in one cohort among women only (Myint PK [34]), and a significant protective effect of lean fish consumption was found in another cohort, which included women only (Larsson SC [42]). No other associations were found. The effect from fatty fish was found for consumption vs no consumption, while the effect from lean fish was found for consumption ≥ 3 servings/wk. Average RR's are 0.94 for fatty fish and 0.74 for lean fish.
Conclusion: Few effects were found. Inconclusive evidence was found for an association between fatty fish, or lean fish consumption and stroke.

Prospective studies of fatty vs lean fish and total stroke:
AuthorCohort nameCasesEnd pointRelative Risk (RR)
for fatty fish
Relative Risk (RR)
for lean fish
42) Larsson SC (2011)The Swedish Mammography Cohort1,680RiskRR = 0.94 (0.68-1.29; P = 0.57)RR = 0.67 (0.49-0.93; P = 0.07)
34) Myint PK (2006)The EPIC-Norfolk Study217 men, and

204 women
RiskMen: RR = 0.88 (0.65-1.19; P = 0.41).

Women: RR = 0.69 (0.51-0.94; P = 0.02).
No significant association
31) Ness AR (2005)The Boyd Orr Cohort83MortalityNo association-
22) Wennberg M (2007)The MONICA StudyFatty fish: 195 men, and
129 women.

Lean fish: 194 men, and
128 women.
RiskMen: OR = 1.29 (0.95-1.83; P = 0.06).

Women: OR = 0.82 (0.58-1.15).
Men: OR = 1.23 (0.94-1.62; P = 0.14).

Women: OR = 0.98 (0.74-1.30; P = 0.91).
Total number of cases:
2,508 for fatty fish, and
2,423 for lean fish
Average RR = 0.94Average RR = 0.74