Talk to a doctor before starting supplements

DEAR DOCTORS: What is your opinion of the brain and memory supplements that we see advertised on TV? I’m also curious about other supplements, like the ones that are advertised to help with vision or for joint health. Do any really help?

DEAR READER: Consumers are inundated with ads for a wide array of supplements that manufacturers claim can slow some of the effects of ageing. And small wonder. These products are big business. The worldwide market for memory supplements alone, which this year hit 345 billion baht, is expected to more than triple in the coming decade. Other popular supplements include those to improve joint health and safeguard vision.

Let’s begin with the so-called brain supplements, which ads suggest can improve memory, concentration and focus. Their ingredients typically include chemical compounds that have been shown to have anti-inflammatory,…