Weight loss is not easy to achieve with many diet plans offering results. Dr Michael Mosley listed a number of common foods dieters should try to avoid if hoping to burn fat.
The expert recommended getting food from substantial meals rather than eating throughout the day.
Snacking on sugary treats can stop fat burning, Dr Mosley explained.
He said: “Grazing keeps sugars up and stops fat burning.
“But if you must, eat a small handful of nuts or a small piece of cheese.”
Cut back on starchy foods
Slimmers should look out for foods high in sugar, including those with hidden sugars.
The expert continued: “Completely cut back on cakes, sweets, biscuits, crisps, fruit juices and soft drinks.
“These foods rapidly turn into sugar in your blood causing sugar spikes and weight gain – they are like the tip of the iceberg.
“Avoid most breakfast cereals. These are usually packed full of sugar,” he added.
“Oats are fine, as long as they are not the flavoured or instant sort.
“Also, avoid too many sweet tropical fruits including mango, pineapple, grapes, melon and bananas, as these are full of sugar.
“Instead, opt for berries, apples and pears. Try to have a maximum of two pieces of fruit a day and always eat the skin.”