Why is eating colored food good for you?

Some studies show that flavonoids may improve brain health, by preventing neurotoxicity in the brain, which is linked to Alzheimer’s disease.

After dieting 50,000 people for more than 20 years, Tian Xin Yeh, a research fellow in epidemiology at Harvard T.H. Chan School of Public Health, found that those who ate more flavonoid-rich foods, including oranges, peppers, celery and grapefruit, had Lower levels of cognitive decline and dementia.

While there is currently no cure for dementia and cognitive impairment later in life, Yeh says, eating more foods rich in flavonoids can help lower the risk. However, the participants who saw the greatest benefits were those who had consistently eaten a diet rich in flavonoids for 20 years.

Yeh says it’s never too late to incorporate these foods into your diet and take advantage of flavonoids.

Yeh says a diet rich in color can also help people avoid the potentially harmful effects of eating too much of one food.

“Food is very complex. For example, research has found that orange juice is associated with a lower risk of cognitive decline, but excessive consumption of it is linked to type 2 diabetes,” she says. Although this is due to its sugar content, not flavonoids.

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Eating a rainbow diet can also be complicated, says Victoria Taylor, a registered dietitian at the British Heart Foundation.

“It can be really hard to get all the color every day — you can tie yourself in knots,” she says.

As she says, we also need to eat food from other food groups to get all the macronutrients we need, like protein.

However, Minich argues, the rainbow diet is not limited to fruits and vegetables, but includes other natural foods, such as herbs, spices, legumes, nuts, seeds, whole grains, and even tea. They also consider white food to be part of the rainbow diet, including tofu, which contains many different isoflavones, which have been linked to a reduced risk of heart disease and some types of cancer, as well as cognitive decline.

Eating a variety of colors could mean we eat more fruits and vegetables in general. One study found that motivating people to eat a colorful meal increases their consumption of healthy food.

says Rochelle Embling, a PhD student at Swansea University, who was not involved in the study.

“This effect is specific to the food eaten, so after a meal, dessert remains desirable because it has different sensory properties,” Embling says.


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