One recent study revealed no evidence that selenium supplements help prevent diabetes, even in geographical areas where there are relatively low amounts of selenium in the natural diet.
Most vitamins and other nutritional supplements are unlikely to prevent chronic disease. Invest in good quality foods, sleep and exercise instead.
Surgeonfish on a reef in the Maldives.
Drastic oxygen losses in the world's oceans millions of years ago coincided with mass extinctions. Scientists see this as a warning about how climate change could affect oceans today.
Space mining has the potential to provide a greater supply of resources either for being exploited locally for construction or being sent back to earth.
Electric cars and smartphones have created growing demand – and volatile prices – for once obscure metals.
Taste the rainbow.
More and more people are trying veganism, but how does the human body respond to losing animal products from its diet?
The mining industry in South Africa needs an inclusive model that builds on and improves shared value.
Could a secret ingredient make crumbling concrete a thing of the past?
Adding a bit of fungus to the initial ingredient list might be one way to endow concrete with the ability to fill in any bits of damage that occur, without the need for human intervention.
Tasty, nutritious, traditional – it's a seasonal superfood. Here's the evidence.
Copper and other minerals will be increasingly important to the growing renewable energy sector.
In the decades ahead, our mineral supply will still need to double or triple to meet the demand for electric vehicles and other renewable energy technology.
Rural areas across South Africa are hosting battles for control of land.
A different form of state capture is underway in South Africa's rural areas where traditional leaders are selling off people's land to miners. But communities are fighting back.
There’s evidence vitamins can slow the progression of existing macular degeneration.
Vitamin and mineral supplements won’t prevent the development of age-related macular degeneration. But there is some evidence taking supplements containing vitamin C, vitamin E and zinc may slow the progression…
Former president of Boswana Ketumile Masire.
Botswana’s late president Ketumile Masire was original and daring. He should be remembered for his courage and prudence.
There are things that come from plants that aren’t in multivitamins.
Recent diet and health surveys show the typical Australian diet is far from what is considered a healthy diet. Can vitamin and mineral supplements come to the rescue?
Africa needs to structure better economic deals with China.
The Chinese £1bn investment in Sheffield, a former mining town in northern England, comes with valuable lessons about how Africa can maximise economic value in its dealings with China.
If the government wants people to be healthy, they're going to need to make varied diets more affordable.
The test site in Iceland where gases from a geothermal power plant are pumped underground and converted into minerals by reacting with basalt stone.
Storing waste CO2 in rock? Results from a test site at a geothermal plant in Iceland show that CO2 mixed with water can be turned into minerals in locations with basalt volcanic rock.
Is the coal train leaving town?
We hear a lot about how essential coal and other mineral exports are for Australia. Is it true? Only for a relatively small section of the population.
Titanium ore can be used to develop lithium ion batteries and supercapacitors, which can aid South Africa’s energy problems.
South Africa his rich in minerals that, combined with the development of nanotechnology, can be used to help it develop new energy technologies.
How did the Star of Adam grow so big?
The world's biggest known sapphire was formed and shaped by natural processes millions of years ago.
Take your spinach, Popeye. Fortified flour can deliver more of the iron we need.
In a World Series of nutrition, don't leave iron on the bench. Fortifying flour can prevent the iron deficiency anemia that affects hundreds of millions of women and children globally.