Sir, We read with interest the recent review article by Key (2011), who concluded that the published results from the epidemiological studies suggest little or no association between the total intake of fruit and vegetables and the risk of common cancers, including colorectal, breast and prostate cancer.
Possible inverse associations of borderline statistical significance were observed between bladder cancer and total intake of vitamin E and dietary phosphorus.
The other group ate the usual hospital diet and both groups were also offered additional fruit, so there was a similar total intake of calories between the two groups.
Out of 5497 publications, 38 studies met the inclusion criteria and dealt with the association between dementia or cognitive decline and the total intake of fatty acids, the diet of saturated fatty acids (SFA), the diet or supplementation of ω-3 PUFAs or ω-6 PUFAs, the ratio of ω-6 to ω-3 PUFAs, and the intake of fish.
These guidelines advise us to limit our total intake of added sugars, fats and other "discretionary calories" to between 5% and 15% of total calories consumed every day.
The resource acquisition capacity was measured as the total DM or DE intake during the first three weeks of lactation and during the period between weaning and parturition (regardless of total intake and number of days between weaning and parturition; i.e. we considered the real weaning to parturition interval of each female) during the first two reproductive cycles.
No other associations were observed between bladder cancer and any other B-group or water-soluble vitamins, which included thiamin, riboflavin, B6, B12, and folate or vitamin C. Similarly, no associations were observed between bladder cancer and total intake for any of the minerals reported in Table 3, including sodium, potassium, magnesium, calcium, phosphorus, and iron.
A previous prospective study of Japanese showed no significant association between total vegetable intake and risk of prostate cancer (Takachi et al, 2010).
