Q: "Which is better: low fat or low sugar? I’m a label-reader, and when I buy muesli or yoghurt I often find one brand is high in fat and the other contains less fat but more sugar."
Name withheld, via email
A: Nutritionist Rose Carr responds:
"It depends on the source. Fruit may supply sugar in foods like muesli and yoghurt, and milk is also a source of sugar in yoghurt. Sugar may also be added. Check the ingredients list (they are listed in descending order by weight); if fruit is first or second in the list, you know that most of the sugar comes from fruit, a better choice than one with sugar as a main ingredient. For fat, if the source is from animal products – meat, poultry, dairy – then aim for lower fat, as animal fats have a high saturated fat content and you want to limit this. If the fat is from a plant source – nuts, seeds and their oils – then as long as it is not too high in energy (kilojoules), don’t worry about it. These fats are good for us. The exceptions are coconut and palm oils, which are high in saturated fats. When buying yoghurt or muesli, I suggest that you compare saturated fat levels, and aim to limit them."