Could Chili Peppers Be The Unexpected Aid For ADHD? Scientist Reveal Gut-Brain Link

Updated Feb 23, 2025 | 07:00 AM IST

SummaryStudies suggest chili peppers, rich in capsaicin, vitamin C, and PUFAs, may influence ADHD symptoms by modulating gut microbiota and neurotransmitter levels, though human trials are needed for confirmation.
Could Chili Peppers Be The Unexpected Aid For ADHD? Scientist Reveal Gut-Brain Link

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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.

Can Chili Peppers Be A Natural Treatment For ADHD?

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.

Role of Vitamin C and Gut Microbiobe

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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Festive Feasting Without the Bloating: Understanding Agni and Digestion

Updated Oct 18, 2026 | 04:52 PM IST

SummaryFestive overeating can trigger bloating, acidity and digestive discomfort. Exploring Ayurveda’s concept of Agni, alongside practical evidence-based eating habits, can help explain digestion and support greater comfort during celebrations.
Festive Feasting Without the Bloating: Understanding Agni and Digestion

Credit: AI

Festivals bring family and friends together and all enjoy traditional sweets and savouries to rich gravies and deep-fried delicacies. However, the joy of celebration and eating more than regular can sometimes lead to bloating, acidity, heaviness, gas and discomfort. Understanding how digestion works and how Ayurveda explains it through the concept of Agni can help us celebrate with smoothness in our digestive system.

During festival, we may eat larger portions, enjoy several rich dishes at one meal, or eat again before we feel actual hunger. Digestive discomfort often occurs when we eat food without knowing agni, consume fatty or fried foods, eat too quickly or combine multiple rich dishes in one meal, untimely, without proper digestion of previous meal. For some people, carbonated drinks and particular food can increase gas or bloating. Stomach stretches when we overeat, and high-fat and heavy meals may delay stomach emptying, leaving us feeling uncomfortably full for longer period. Eating rapidly can also cause us to swallow more air. For people prone to acid reflux, large meals may get worsen with heartburn and regurgitation. Occasional bloating after a heavy meal is common.

Ayurveda explain digesting and metabolism through concept of Agni. The concept of Jatharagni relates particularly to the digestion and metabolism of food. Ayurveda also describes Mandagni (diminished digestive capacity) which will be associated with symptoms such as heaviness, reduced appetite and sluggish digestion etc..., from a practical perspective, the Ayurveda emphasis on eating according to digestive capacity, avoiding excessive food intake and maintaining regular dietary habits aligns sensibly with modern nutrition advice. Classical ayurvedic text emphasise the importance of maintaining balance Agni, for overall health, well-being and preventive care; however, Agni is a traditional Ayurvedic concept and should not be directly corelated with any single modern physiological process.

Also read: We Fact Checked The Ayurveda Claim Of Papaya Lowering Your Cholesterol, Details Inside

Five Healthy Eating Habits For Festive Season

1. Portion awareness: Enjoy your favourite dishes of festival but begin with moderate portions. Eat in moderate speed and pause before taking a second serving.

2. Avoid excessive food in one sitting: Multiple preparations which are fried and sugary can make a meal unnecessarily heavy. Choose a balanced plate with vegetables, protein-rich foods and appropriate portions of carbohydrates and Fats.

3. Hydration: Drink warm water regularly throughout the day sip by sip. Limit excessive carbonated beverages if they are causing any discomfort or not.

4. Digestion time: Avoid lying down immediately after meals. A gentle 10–15-minute slow walk after eating may support general digestive comfort, then if needed lie-down on left sided.

5. Routine and mindful eating: Avoid skipping meals to compensate for feasting. Eat when comfortably hungry after analysing agni, pay attention to fullness and maintain regular sleep, physical and mindfulness activities.

Festive eating need not mean deprivation or discomfort. Ayurveda's emphasis on Agni encourages us to respect individual digestive capacity, and guidance from nutrition reinforces moderation, mindful eating and balanced meals. Enjoy the foods you love, savour every bite, observe and recognise when you are comfortably full of stomach.

Seek medical evaluation if bloating is persistent, frequently recurring or accompanied by severe abdominal pain, repeated vomiting, diarrhea, blood in the stool, unexplained weight loss, difficulty swallowing or any GI related symptoms. Severe or sudden abdominal pain requires urgent medical attention and assessment.

This festive season, let celebration nourish your well-being not leave you feeling weighed down.

Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice.

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India Proposes Lower Pesticide Residue Limits In Tea Than US & Japan: What Are The Health Risks?

Updated Oct 18, 2026 | 03:22 PM IST

SummaryThe Food Safety and Standards Authority of India has proposed limiting the amount of pesticide residue in tea leaves as part of a bigger review of pesticide toxicity.
India Proposes Lower Pesticide Residue Limits In Tea Than US & Japan: What Are The Health Risks?

Credit: AI

According to Indian food regulations, there is a specified amount of pesticide residue that can legally remain in tea leaves. But the Food Safety and Standards Authority of India (FSSAI) has proposed new limits for two types of pesticides used in agriculture, including a limit for one that is lower than those in the United States and Japan.

The draft amendment, announced by the Ministry of Health and Family Welfare on October 17, 2026, proposes maximum residue limits (MRLs) for acetamiprid and imidacloprid in tea. The move is aimed to give tea farmers, manufacturers and regulators clearer standards to follow.

Under the proposal, the maximum permitted residue of acetamiprid in tea would be 20 milligrams per kilogram (mg/kg), or 20 parts per million (ppm). For imidacloprid, the proposed limit is 50 mg/kg.

The draft regulations were published in the Gazette of India on October 16 and are yet to be finalised. These are proposed legal limits, not measurements showing how much pesticide is present in tea sold in India.

India's Proposed Limits For Pesticide Residue In Tea

India has proposed a limit of 20 ppm for acetamiprid, which is lower than the corresponding limit of 30 ppm in Japan and 50 ppm in the United States. For imidacloprid, the proposed Indian limit has been formulated with reference to international Codex standards.

These figures do not mean that tea sold in the US or Japan necessarily contains more pesticide residue. Maximum residue limits specify the highest concentration legally permitted in a food product. Actual residue levels depend on pesticide use, farming practices, and testing results.

A higher legal limit also does not automatically mean that a food product is unsafe. Risk assessment requires additional information about the pesticide, the amount consumed, the level of exposure and its toxicological profile.

The proposed tea standards are part of FSSAI's review of pesticide residue regulations. The government said an earlier regulatory measure aimed at delisting 13 pesticides that were known to have higher toxicity.

The regulator also highlighted India's comparatively low average pesticide use, at less than 0.5 kg per hectare, against an estimated global average of 2.38 kg per hectare.

Also read: Your Protein Powder May Be Toxic! A New Study Reveals High Levels Of Lead And Cadmium

What Are Acetamiprid And Imidacloprid?

Acetamiprid and imidacloprid belong to a class of insecticides called neonicotinoids. They are used to control agricultural pests. Although they help protect crops, their safety depends on how they are used, the residues left behind and the amount people are exposed to.

Acetamiprid acts on the nervous system of insects. Toxicological research has raised concerns about its potential effects on the nervous system and reproductive development at sufficiently high exposure levels.

Imidacloprid also works the same way and its excessive exposure can cause toxic effects, including neurological symptoms.

The health risks stem from long-term, low-level exposure that depend on the dose, way of exposure and duration. The proposed residue limit alone cannot establish whether a particular tea product poses a health risk.

Also read: Blueberries To Green Beans: Fruits & Vegetables With Maximum Pesticide Content

Health Risks Of Pesticide Residues In Tea

The health risks associated with pesticide residues depend on the chemical involved and how much enters the body. High exposure to certain insecticides can affect the nervous system, while toxicological studies have also investigated possible effects on reproduction.

For consumers, the key question is whether pesticide exposure through food remains within levels considered acceptable under established safety assessments.

Maximum residue limits are designed to help regulate pesticide use. They are generally set using data on pesticide use, residue levels, dietary exposure and toxicological assessments.

The actual exposure for tea drinkers also depends on how much residue remains in the dry leaves and how much transfers into the brewed drink. Residue levels in dry tea cannot be directly compared with the amount consumed in a cup.

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Ultra-Processed Foods Linked To 40% Higher Odds Of Brain Damage; Women More At Risk, Finds Study

Health and Me

Updated Oct 16, 2026 | 08:00 PM IST

SummaryA decade-long Canadian study published in JAMA Network Open has linked higher ultra-processed food intake to increased odds of vascular brain injury visible on MRI scans, including in people without symptoms. Researchers say further studies are needed to establish whether the foods directly cause the damage.
Ultra Processed Foods Linked To Signs Of Brain Damage

A Canadian study has linked higher ultra processed food intake to increased odds of vascular brain injury visible on MRI scans. (Image Credits: iStock)

McMaster University’s release names packaged snack foods, sugary breakfast cereals, soft drinks, instant noodles and ready-to-eat frozen meals as examples of ultra-processed food.

What counts as ultra-processed

Chips, sweet breakfast cereals, processed sweet yogurts, soft drinks, instant noodles and frozen ready meals all fall under the ultra-processed category, according to Russell de Souza, a health research professor at McMaster University and registered dietitian, speaking to CTV News.

What the study found

McMaster University’s release names packaged snack foods, sugary breakfast cereals, soft drinks, instant noodles and ready-to-eat frozen meals as examples of ultra-processed food.

The study was led by McMaster’s Population Health Research Institute (PHRI) and enrolled nearly 9,000 Canadians aged 35 to 69 with no history of heart disease, according to McMaster. Participants came from two PHRI studies, the Canadian Alliance for Healthy Hearts and Minds and the Prospective Urban and Rural Epidemiology-MIND study. Each completed detailed dietary questionnaires and had an MRI brain scan, reviewed by neurologists who didn’t know their diets.

Also Read: Ozempic Baby: Can GLP-1 Drugs Help Women With PMOS Conceive?

Published October 15 in JAMA Network Open, the study found that participants with the highest intake were 40 per cent more likely to show tiny areas of brain damage than those who ate the least, per McMaster. These changes cause no obvious symptoms. They are considered early warning signs that can appear years before a stroke or memory problems.

Ultra-processed food made up about 25 per cent of participants’ daily food servings on average. For the heaviest consumers it was 45 per cent, compared with 16 per cent for the lowest group, McMaster reported.

Ultra-processed food made up about 25 per cent of participants’ daily food servings on average. For the heaviest consumers it was 45 per cent, compared with 16 per cent for the lowest group, McMaster reported. As intake rose, whole-food intake fell. Fruits, vegetables, grains and other minimally processed foods made up 41 per cent of daily servings in the highest-intake group, against 68 per cent in the lowest. Russell J. de Souza said this suggests ultra-processed foods displaced healthier whole foods rather than simply being eaten on top of a usual diet.

“I would not have expected this finding, frankly,” said de Souza, who is also an associate scientist at PHRI. The participants were middle-aged Canadians with no heart problems and no other reported health concerns, he noted. He added that this kind of damage is usually associated with conditions seen at a much older age, according to McMaster.

A stronger link in women

The association between ultra-processed food and brain damage appeared stronger among women. Those in the highest consumption group were nearly twice as likely to show signs of brain damage as those in the lowest, according to McMaster.

Participants with the highest intake also carried more body fat and more deep belly fat. McMaster’s release says this fat is linked to inflammation and blood vessel damage that can also reach the brain.

Senior author Sonia Anand, a senior scientist at PHRI, said the findings suggest the link between diet and brain health may be detectable before people notice memory or thinking problems. She said it adds to evidence that what Canadians eat from their 30s through their 60s shapes brain health later in life, per McMaster.

Correlation, not yet proof

Because participants were assessed only once and not followed over time, the researchers couldn’t determine whether ultra-processed food directly causes these brain changes, McMaster noted. De Souza said longer-term studies with repeated MRI scans are needed to find out whether cutting back can slow or prevent them. He said such follow-up is ongoing.

Speaking to CTV News, Anand said some participants whose diets were more than 45 per cent ultra-processed showed a combination of silent stroke and a pre-stroke profile. She said the team observed an independent effect of ultra-processed food on the damage seen in the scans. In the same interview, de Souza acknowledged that avoiding these foods isn’t equally easy for everyone, with many people struggling to make ends meet. He encouraged eating at home, buying local and using supermarket sales. Some participants are now returning for follow-up MRIs, with results expected in early 2028.

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