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Milk-and-Dairy-Products-in-Human-Nutrition-FAO

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Chapter 4 – <strong>Milk</strong> <strong>and</strong> dairy products as part of the diet 157<br />

Table 4.5<br />

Relationship between milk <strong>and</strong> dairy product consumption <strong>and</strong> cancer<br />

Cancer<br />

Predictor<br />

Number of<br />

studies<br />

Pooled relative risk <strong>and</strong><br />

heterogeneity<br />

Comments<br />

Colorectal<br />

Breast<br />

Prostate<br />

Bladder<br />

<strong>Milk</strong> 4 cohorts 0.94 (95% CI 0.85–1.03)<br />

per serv<strong>in</strong>g/day, with low<br />

heterogeneity<br />

<strong>Milk</strong> 10 cohorts 0.78 (95% CI: 0.69–0.88) for<br />

the highest <strong>in</strong>take group when<br />

compared to the lowest<br />

Cheese 3 cohorts 1.14 (95% CI: 0.82–1.58)<br />

per serv<strong>in</strong>g/day, with low<br />

heterogeneity<br />

Cheese 2 cohorts 1.11 (95% CI: 0.88–1.39) per 50<br />

g/day, low heterogeneity<br />

Calcium 10 cohorts 0.98 (95% CI: 0.95–1.00)<br />

per 200 mg/day, with low<br />

heterogeneity<br />

Calcium 8 cohorts 0.95 (95% CI: 0.92–0.98)<br />

per 200 mg/day, with no<br />

heterogeneity<br />

<strong>Milk</strong> & dairy<br />

<strong>Milk</strong> 8 cohorts 1.05 (95% CI: 0.98–1.14)<br />

per serv<strong>in</strong>g/day, with low<br />

heterogeneity<br />

<strong>Milk</strong> 6 case-control 1.08 (95% CI: 0.98–1.19) per<br />

serv<strong>in</strong>g/day, with moderate<br />

Heterogeneity<br />

<strong>Milk</strong> & dairy<br />

products<br />

<strong>Milk</strong> & dairy<br />

products<br />

8 cohorts 1.06 (95% CI: 1.01–1.11) per<br />

serv<strong>in</strong>g/day, with moderate<br />

heterogeneity<br />

5 case-control 1.03 (95% CI: 0.99–1.07)<br />

per serv<strong>in</strong>g/day, with low<br />

heterogeneity<br />

Calcium 8 cohorts 1.27 (95% CI: 1.09–1.48)<br />

per g/day, with moderate<br />

heterogeneity<br />

Calcium 3 case-control 1.16 (95% CI: 0.64–2.14) per<br />

gram of calcium/day, with high<br />

heterogeneity<br />

<strong>Milk</strong> 4 cohorts 0.82 (95% CI 0.67–0.99) per<br />

serv<strong>in</strong>g/day, with moderate<br />

heterogeneity<br />

<strong>Milk</strong> 3 case-control 1.00 (95% CI: 0.87–1.14)<br />

per serv<strong>in</strong>g/day, with high<br />

heterogeneity<br />

<strong>Milk</strong> probably protects<br />

aga<strong>in</strong>st colorectal cancer<br />

There is limited evidence<br />

suggest<strong>in</strong>g that cheese is a<br />

cause of colorectal cancer<br />

Epidemiological evidence for<br />

cheese <strong>in</strong>take is consistently<br />

<strong>in</strong> contrast to the probable<br />

protective effect from milk<br />

No specific mechanism<br />

has been identified but<br />

cheese could plausibly cause<br />

colorectal cancer through<br />

the <strong>in</strong>direct mechanisms<br />

connected to saturated fats<br />

Limited evidence, no<br />

conclusions<br />

There is limited evidence<br />

suggest<strong>in</strong>g that milk <strong>and</strong><br />

dairy products are a cause of<br />

prostate cancer<br />

Diets high <strong>in</strong> calcium are a<br />

probable cause of prostate<br />

cancer<br />

<strong>Milk</strong> could plausibly cause<br />

prostate cancer through<br />

the actions of calcium.<br />

Also, consumption of milk<br />

<strong>in</strong>creases blood levels of<br />

IGF‐1, which has been<br />

associated with <strong>in</strong>creased<br />

prostate cancer risk <strong>in</strong> some<br />

studies<br />

There is limited evidence<br />

suggest<strong>in</strong>g that milk protects<br />

aga<strong>in</strong>st bladder cancer<br />

CI – confidence <strong>in</strong>terval.<br />

Sources: WCRF <strong>and</strong> AICR (2007, 2008a, 2008b).

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