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Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder that affects millions of people, both children and adults. The key characteristics are hyperactivity, impulsivity, and inattention. Because of many obstacles, researchers have been searching for other therapies—inclining to include diet intervention to control the symptoms of ADHD more effectively. One interesting area of research is that for chili peppers! Yes, you read it correctly, scientists are studying the effects of chilli peppers in order to help ease symptoms of ADHD through their action on gut microbiota and the gut-brain axis.
The gut-brain axis (GBA) is a two-way communication system that connects the gastrointestinal tract with the central nervous system. It has significant roles in brain function, emotional control, and cognitive processes. The most recent research indicates that gut microbiota- bacteria living in the digestive system can potentially affect ADHD by impacting the production of neurotransmitters and brain structure.
People with ADHD tend to have reduced levels of healthy gut bacteria, including Lactobacillus, and a less diverse gut microbiota. This imbalance can contribute to greater neuroinflammation and oxidative stress, both of which are involved in ADHD pathology.
Gut microbiota also control the production of dopamine and serotonin, two neurotransmitters critical for attention, impulse control, and emotional stability.
Chili peppers have bioactive molecules, such as capsaicin, vitamin C, and polyunsaturated fatty acids (PUFAs), that could affect symptoms of ADHD through modulation of the gut microbiota and neurotransmitter concentration.
Capsaicin, the phytochemical in chili peppers, has been found to modulate neurotransmitter levels. Experiments with animals reveal that capsaicin boosts the levels of serotonin and dopamine in the brain, which has the potential to enhance attention and impulse control.
Additionally, capsaicin has been shown to inhibit neuroinflammation and oxidative stress, both of which are associated with ADHD pathology. Through the reduction of these variables, capsaicin could help to decrease some ADHD symptoms. While animal models offer promising information, human studies are needed to ascertain if capsaicin supplementation can produce a concrete effect on ADHD symptoms.
Chili peppers are a rich source of vitamin C, a potent antioxidant that enhances immune function, neurotransmitter production, and iron absorption. New evidence indicates that vitamin C can also increase the prevalence of helpful microbes such as Lachnospiraceae in the gut microbiota. Gut microbial balance has been implicated in neurodevelopmental diseases such as ADHD, and vitamin C's activity in regulating gut microbes could potentially be used as a therapy.
Moreover, vitamin C also decreases brain inflammation, which tends to be higher in patients with ADHD.
Chili peppers are also rich in PUFAs, such as omega-3 and omega-6 fatty acids. Studies have established that patients with ADHD tend to have lower levels of omega-3 PUFAs, which are important for brain function, synaptic plasticity, and regulation of neurotransmitters. Omega-3 supplementation has been shown to enhance memory function and boost short-chain fatty acid (SCFA)-producing gut bacteria, which promote brain and gut health.
Given that PUFAs have anti-inflammatory properties and maintain cognitive function, their occurrence in chili peppers contributes to the accumulating data indicating dietary intervention may be effective in modulating ADHD symptoms.
Although chili peppers have bioactive substances that could affect the gut-brain axis and help alleviate ADHD symptoms, their impact is speculative until stricter human trials are carried out. Being a readily available food item, peppers can be used as a possible adjunct therapy, which can be added to conventional ADHD treatments. Peppers, however, cannot be used as a substitute for established medical therapies, including behavioral therapy and prescription drugs.
The developing connection between nutrition, gut microbiome, and ADHD has paved the way for exploring non-medication interventions. Chili peppers, rich in capsaicin, vitamin C, and PUFAs, represent a novel yet unproven method for modulating ADHD symptoms. While early research points towards a possible intervention by chili peppers in modulating neurotransmitter content and minimizing neuroinflammation, human studies are essential to validate the observations.
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A key ingredient found in a common breakfast food may play an important role in supporting heart health and keeping blood sugar levels steady. Fibre is an essential part of a balanced diet, and the NHS recommends that adults aim for at least 30g of fibre each day. Despite this, many people still fall short of the daily target, often without realising the long-term impact on their health.
Fibre is not a single substance. It exists in two main forms, and each affects the body in a different way. Insoluble fibre does not dissolve during digestion. Instead, it passes through the gut largely unchanged, adding bulk to stools and helping the bowels move regularly. This can lower the risk of constipation and reduce the chances of developing intestinal blockages.
Soluble fibre behaves differently. When it comes into contact with water in the digestive system, it forms a gel-like substance. This slows the digestion and absorption of carbohydrates, helping to prevent sudden rises in blood sugar after meals. Because of this effect, soluble fibre can be particularly useful for people managing blood sugar conditions, including diabetes.
Beta-glucans are a specific type of soluble fibre that have attracted attention for their heart-protective benefits. According to the British Heart Foundation, beta-glucan is naturally present in all porridge oats and wholegrains. A standard 40g serving of porridge oats contains around 2g of beta-glucan, making it an easy addition to a heart-friendly diet.
Research suggests that beta-glucan may help improve blood sugar control over time. Studies have found that consuming up to 3.5g of beta-glucan daily can lower blood sugar levels and support better long-term glucose management in people with type 2 diabetes. A higher intake of beta-glucan has also been linked to a reduced risk of developing type 2 diabetes, likely due to its ability to slow sugar absorption.
Another study has highlighted the connection between regular beta-glucan intake and improved heart health. The findings showed that eating just 3g of beta-glucan each day for eight weeks led to a noticeable reduction in cholesterol levels. High cholesterol is a well-known risk factor for heart disease, so even small daily amounts of beta-glucan may offer meaningful benefits.
Beta-glucan is found in a wide range of natural foods, including:
Including a variety of these foods in meals can help increase fibre intake in a balanced way.
As beta-glucan is a form of fibre, increasing intake too quickly can cause mild digestive discomfort. Some people may experience bloating, wind, or constipation, especially in the early stages. These symptoms can often be reduced by staying physically active and drinking enough fluids throughout the day.
If you are concerned about how fibre affects your body, it is advisable to speak with your GP or a qualified health professional. They can offer guidance tailored to your needs. More information on increasing fibre intake and its health benefits is also available on the NHS website.
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While the World Health Organization recommends 5g or a tablespoon of salt every day, Indians consume more than double, increasing their risk of having a fatal stroke exponentially.
According to EatRightIndia, Indians consume about 11g of salt each day through meals which can significantly increase their risk of high blood pressure, strokes and hypertension.
Hypertension causes over 1.6 million deaths annually, accounting for nearly 18 percent of all fatalities and heavily contributes to deaths caused by heart disease, stroke and kidney disease.
The most important side effect of consuming excessive salt intake is high blood pressure. Salt causes the body to retain water, increasing the volume of blood in your vessels and leading to elevated pressure levels. If your blood pressure consistently measures over 140/90 mmHg, it's time to evaluate your salt consumption.
Over time, this can rapidly raise your risk for heart disease, stroke while also potentially contributing to stomach cancer and weakened bones. Additionally, high blood pressure damages kidneys and excess sodium can lead to kidney stones or disease.
Apart from a 5gm recommendation for adults, NHS suggests that children between seven to 11 years of age should not eat more than 5g of salt while those between four to six years of age should eat less than 3g of salt every day to maintain heart health.
Both excessive and insufficient salt intake have been linked to adverse outcomes. Achieving the right balance is critical, and the best approach is to minimize processed food consumption rather than relying solely on the salt shaker.
Common items such as pickles, paapads, chutneys, salads and buttermilk significantly contribute to daily salt consumption. Hidden salts in packaged goods like biscuits, sauces, condiments and snacks also can increase your salt intake.
To cut down on your salt intake, experts recommend:
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Tagatose, a natural sugar with a third of the calories of table sugar, may be the up-and-coming safe alternative to unhealthy added sugars, scientists say.
Researchers from Tufts University, Massachusetts in partnership with biotechnology companies Manus Bio (US) and Kcat Enzymatic (India), claim that tagatose, found in only small amounts in some dairy products and fruits, is a healthier option than regular sugar and sweeteners.
The experts also claim it this rare natural sugar also does not cause insulin spikes, making it safe for consumption for both Type 1 and 2 diabetes patients. Tagatose has also been previously recognized as safe for consumption by the US Food and Drug Administration (FDA) and the World Health Organization (WHO).
Certain studies have also found tagatose to be 'tooth friendly', as it can limit the growth of harmful microbes in the dental cavity and prevent tooth decay as well as cavities.
Due to being a natural sugar with similar taste and bulk to sugar but fewer calories, minimal blood sugar impact, prebiotic benefits and heat-stable for baking, tagatose is known to better than artificial sweeteners.
Moreover, it also lacks the bitter aftertaste common with some artificial sweeteners such as saccharin and stevia and tastes 92 percent as sweet and 60 percent less calories than common sugar.
With low calories and low absorption, tagatose is an attractive bulk sweetener, meaning it can not only can replace sugar for sweetness but can also provide a similar bulk texture in cooking that comes with adding the sugar in some quantity, something that high intensity sweetener substitutes are unable to do due to their composition.
Yes, tagatose can be eaten by insulin-resistant people as it's only partially absorbed in the small intestine; much of it being fermented by gut bacteria in the colon. Because of this, its impact on blood glucose and insulin is much less than that of conventional sugar.
Clinical studies show very low increases in plasma glucose or insulin after ingestion of tagatose. However, in the gut, the rare sugar is metabolized in a similar way to the fruit sugar, fructose, meaning those with fructose intolerances may want to steer clear
While tagatose is far more beneficials than other commercially-available sugars, it remains unavailable due to limited production. "There are established processes to produce tagatose, but they are inefficient and expensive," explains biological engineer Nik Nair from Tufts.
But it can still be found in milk and other dairy products when lactose is broken down by heat or enzymes, such as yogurt, cheese and kefir. Along with this, fruits such as apples, pineapples and oranges also contain trace levels of tagatose as part of their natural carbohydrate spectrum.
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