Spermidine is a naturally occurring compound found in foods such as wheat germ, soybeans, mushrooms, legumes, aged cheese, and fermented foods. It has gained attention for its role in autophagy, mitochondrial health, immune function, and cellular repair. While animal studies and observational human data are promising, spermidine supplementation has not yet been proven to extend lifespan in humans, and larger long-term trials are still needed.

Activated charcoal has an evidence-based role in emergency medicine for certain acute poisonings, but that does not make it a proven daily detox supplement. Wellness claims around mold detox, heavy metals, bloating, hangovers, and longevity are not supported by strong clinical evidence. Regular use may also interfere with medication and nutrient absorption, making it a supplement to approach with caution.

GlyNAC, a combination of glycine and N-acetylcysteine, is an emerging longevity supplement designed to support glutathione production, mitochondrial function, and cellular stress resilience. Early animal and human studies suggest potential benefits for oxidative stress, inflammation, insulin resistance, cognition, and physical function in older adults. However, GlyNAC has not been proven to extend lifespan in humans, and larger long-term studies are still needed.

Juicing can be a convenient way to increase vitamins, minerals, polyphenols, and other plant compounds, especially for people who struggle to eat enough vegetables. However, juicing removes much of the fiber, can concentrate sugar and calories, and should not be used as a cleanse or detox. Whole fruits and vegetables should remain the foundation.

Potassium bromate is a controversial flour additive used to strengthen dough and improve bread texture. Although it remains permitted in some U.S. foods, it has been linked to cancer, kidney toxicity, oxidative stress, and DNA damage in experimental studies. Learn where it may be found and how to avoid it by choosing unbromated flour and less processed baked goods.

Phthalates are common chemicals found in plastics, fragrances, personal care products, food packaging, household dust, and some medications. They have no known health benefit and may affect hormones, fertility, pregnancy, child development, metabolism, and thyroid function. Learn practical ways to reduce exposure without living in fear.

Nitric oxide plays an important role in blood vessel health, circulation, blood pressure, and exercise performance. Beetroot and nitrate-rich vegetables may help support nitric oxide production, but the strongest approach is still food-first: leafy greens, beets, exercise, and overall cardiovascular prevention before relying on supplements.

Fluoride can help prevent cavities, but total exposure matters — especially for young children. This article reviews the benefits of community water fluoridation, fluoride toothpaste, and dental treatments, while also discussing concerns about excessive exposure, dental fluorosis, thyroid and bone effects, and ongoing research on neurodevelopment.

Gardening is more than a hobby — it is a lifestyle habit that supports movement, nutrition, stress reduction, sunlight exposure, mental health, and connection to nature. Research suggests gardening is associated with lower mortality and better cardiovascular, metabolic, and emotional well-being, making it a powerful example of lifestyle medicine in action.

Sea moss has become a popular wellness supplement for gut health, thyroid support, immunity, and longevity. While it contains minerals, iodine, and promising bioactive compounds, strong human evidence is limited — and excessive iodine intake, thyroid effects, heavy metals, and product quality are important concerns.

Glutathione is one of the body’s most important antioxidant and detoxification molecules, supporting cellular repair, immune function, and mitochondrial health. While glutathione levels decline with age, current evidence does not show that supplementation extends lifespan — making diet, exercise, sleep, and metabolic health the foundation.

Soy is often criticized for its potential effects on hormones, but the evidence is far more reassuring than the hype suggests. Whole soy foods like tofu, tempeh, edamame, and unsweetened soy milk can be part of a healthy, longevity-focused diet, while high-dose soy supplements and ultra-processed soy products deserve more caution.

Akkermansia muciniphila is one of the newest “hot” gut health supplements, promoted for metabolism, inflammation, gut barrier support, and bloating. Early research is promising, especially for metabolic health, but human evidence remains limited — and it is not yet a valid treatment for chronic bloating.

Bluetooth earbuds produce very low levels of non-ionizing electromagnetic exposure, and current evidence does not show a clear cancer risk. The bigger health concerns are hearing loss from loud volume, prolonged use, ear irritation, wax buildup, and proper ear hygiene.

Mycotoxins are toxic compounds produced by certain molds that can contaminate foods like grains, nuts, coffee, dried fruit, and spices. Learn how they may affect health, why testing is complicated, and the practical steps you can take to reduce exposure without unnecessary fear.

Red meat remains one of the most debated foods in longevity nutrition. Processed meat is consistently linked to higher chronic disease risk, while unprocessed red meat is more nuanced. Here’s how to think about red meat, protein quality, food processing, and long-term health.

Cigarette smoking rates continue to decline, but vaping and other nicotine products are becoming increasingly common. While e-cigarettes may be less harmful than traditional cigarettes, emerging research shows they are far from harmless. Learn what the latest evidence reveals about smoking, vaping, secondhand smoke, and long-term health risks.

Parabens are preservatives commonly found in cosmetics, personal care products, medications, and some foods. While research suggests they can act as weak endocrine disruptors, the real-world health risks remain debated. Learn what parabens are, where they're found, and whether avoiding them is worth the effort.

Hyperbaric oxygen therapy dramatically increases oxygen delivery to tissues and has proven benefits for conditions such as carbon monoxide poisoning, radiation injury, and difficult-to-heal wounds. But does it improve longevity, cognition, or healthy aging in otherwise healthy adults? Here's what the current evidence actually shows.

Whey protein is one of the most studied nutritional supplements available. Research suggests it may support muscle growth, exercise recovery, weight management, cardiometabolic health, healthy aging, and even gut microbiome diversity. Learn how whey protein works and who may benefit most from supplementation.