Consuming high amounts of sugar can have negative effects on the brain, according to scientific research. When you do meal preparation, please be aware of the amounts of sugar in your diet.
One study published in the Journal of the American College of Nutrition in 2009, "Sugar and the brain: the neurology of sugar addiction," discusses the potential addictive properties of sugar and its effects on the brain. The study found that consuming sugar activates the same reward centres in the brain as drugs such as cocaine, leading to an increased release of dopamine and other neurotransmitters associated with pleasure and reward. This can lead to a cycle of sugar cravings and addiction.
Another study published in the Journal of Physiology in 2016, "Sugar consumption exacerbates Alzheimer's disease pathology" found that consuming high amounts of sugar can exacerbate the development of Alzheimer's disease. The study found that high sugar diets led to an increase in beta-amyloid protein, which is a key component of the plaques found in the brains of Alzheimer's patients.
Additionally, a study published in the Journal of Clinical Investigation in 2015, "Dietary sugar and high-fat diet alter neuronal signalling and behaviour in mice" found that consuming high amounts of sugar can lead to changes in neuronal signalling and behaviour in mice, including increased anxiety and memory impairment.
Taken together, these studies suggest that consuming high amounts of sugar can have negative effects on the brain, including addiction, increased risk of Alzheimer's disease, and changes in behaviour and neuronal signalling. It is important to note that more studies are needed to confirm the findings, but it's recommended to consume sugar in moderation to maintain the overall health.