High intakes of fish oil can cause excessive bleeding in some people.
And high intakes of trans fats may cause insulin resistance, a marker of type 2 diabetes.
Unquestionably, there is no benefit from high intakes of added sugar, and for most people there are adverse effects.
Studies have produced mixed results, with some showing an increased risk with high intakes of this B vitamin.
This study provides further support to the notion that high intakes of folate may help to protect against CIN and cervical cancer.
In the 80s, several studies showed that people who had high intakes of the antioxidant vitamin betacarotene from eating fruit and vegetables were less likely to develop cancer.
She said: "This US study looked at associations between high intakes of red meat and risk of mortality, finding a positive association between the two.
A similar thing happened with the suggestion that people who had high intakes of vitamin E were less likely to develop heart disease.
And a recent article in the journal Cell linked high intakes of animal protein to cancer and higher overall mortality in the under 65s.
Whole-crop maize silage as forage in diets of finishing cattle can promote high intakes and thus, enhances animal performance.
These will be needed if initially high intakes are indicated for at least parts of the population.
