The Durham County Council has claimed that daily doses of fish oil
supplements can help children improve their exam grades considerably.
The research team found that pupils who took Omega-3 capsules in the
year before their GCSE exams had better results than those who did
The children that continued taking the free supplements got two grades
higher in their exams, an average of 17.7 points more, than those who
did not take the pills.
However, scientists have dismissed the experiment because it did not
include a second group of children taking placebo pills.
Professor Tom Sanders, head of nutrition at King’s College, London
said the trial was not “randomized”, which is essential to avoid
changes, which occur, by play of chance.
“No conclusions can be made about the benefits or otherwise. Parents
who agree to supplementation of their children may differ with regard
to motivate and support their children compared with those that do
not,” Telegraph quoted him, as saying.
“Making comparisons with a group that did not take supplements
introduces selection bias. The conclusions cannot be trusted,” he