Readers of my now defunct chemist's view of food blog will recall that one of my themes was the folly of looking for nutritional 'magic bullets' and the errors of assuming if a little is good for you then a lot must be better. I am not in favour of vitamin tablets, for example.
Or most other tablet supplements. Far better to get the correct levels in their natural matrix as part of a balanced, healthy diet.
How dull! How boring! Sorry.
Today the New South Wales Cancer Council warned against eating too many soy supplements.
The Cancer Council says soy-based products have previously been touted as super foods for breast and prostate cancer prevention. But while consuming soy foods can slightly lower the risk of contracting breast cancer, new research shows high doses of soy can stimulate the growth of existing cancer.
The Cancer Council says soy supplements can also interfere with breast cancer treatment.
However, Cancer Council nutritionist Kathy Chapman says eating a normal amount of soy-based foods is not dangerous.
"For women who've had breast cancer, taking high dose soy supplements could be harmful but having the occasional soy food is not really an issue," she said.
Apparently the phytoestrogens present in large amounts in the tablet supplements are causing some concern.