#HeavyMetals

A new warning from Harvard-affiliated medical experts and recent research has raised urgent concerns over the safety of commercially available protein powders, drawing attention to potentially hazardous contaminants in products widely consumed by fitness enthusiasts, athletes, and health-conscious Thais. According to reviews by researchers and reports by advocacy groups such as the Clean Label Project, many popular protein powders contain significant levels of heavy metals, plastic-derived chemicals, and other toxins—a finding that threatens to upend perceptions of these supplements as inherently “healthy” choices for those pursuing muscle gain or dietary supplementation [Harvard Health][LADbible].

A warning from Harvard-affiliated medical experts and recent studies raise urgent questions about the safety of widely sold protein powders. The findings point to potential contaminants in many products favored by fitness enthusiasts, including Thais. Research and advocacy groups note heavy metals, plastic-related chemicals, and other toxins in several powders, challenging the assumption that these supplements are inherently healthy.

Protein powder is a staple for millions, including Thailand’s growing fitness community, where shakes are marketed as convenient, protein-rich options for muscle building and everyday nutrition. The supplement industry is valued at more than US$20 billion globally, with Thai gyms, health stores, and online shops offering a wide array of powders. Yet new warnings emphasize potential risks beyond convenience. A senior clinician at a Harvard-affiliated hospital cautioned that protein powders should be used only in specific circumstances and under supervision. The concerns focus on limited long-term safety data, possible digestive discomfort for those with lactose intolerance or dairy allergies, and, most worryingly, contaminants linked to serious health effects.

Water spinach, known locally as pak boong, has long graced Thai tables—from sizzling stir-fries to comforting soups. Across Southeast Asia it is also called morning glory or Ipomoea aquatica. While valued for affordability, flavor, and nutrition, recent science shows both clear benefits and potential risks tied to how this aquatic vegetable is grown and prepared. For Thai readers, understanding these factors supports healthier choices without sacrificing tradition.

Water spinach is a common sight in Thai households and street stalls, reflecting its role as an everyday staple. It is praised as a nutrient-dense leafy green, yet its preference for watery environments—canals, paddies, and marshes—means it can absorb environmental contaminants that may reach the plate. Studies conducted in Thailand and beyond underscore both the plant’s health advantages and the importance of safe cultivation and handling.

For generations, water spinach—known locally as “pak boong”—has been a staple green vegetable in Thai cuisine, cropping up in everything from fiery stir-fries to refreshing soups. Across Southeast Asia, its common names include morning glory and Ipomoea aquatica. While praised for its affordability, taste, and nutritional value, recent scientific studies reveal both notable health benefits and underappreciated risks associated with this aquatic vegetable. Understanding these factors can help Thai consumers make informed decisions and enjoy water spinach as part of a healthy diet.

A recent US-based investigation has rocked the dental care industry, with new research revealing that the majority of toothpaste brands—some specifically marketed for children or as “green” alternatives—are contaminated with toxic heavy metals, including lead, arsenic, mercury, and cadmium. The findings, released in April 2025, have raised serious public health concerns for families worldwide, including in Thailand, where toothpaste is a staple in daily hygiene routines and global brands are widely used.

A new US study has sparked concern across the global dental and consumer safety communities. Researchers tested 51 toothpaste brands and found that a large majority contained toxic heavy metals, including lead, arsenic, mercury, and cadmium. The report, published in April 2025, highlights potential risks for families who rely on toothpaste daily, including children, and underscores the need for stricter oversight in Thailand and beyond.

According to investigative researchers led by a patient-safety group, about 90% of the tested brands contained detectable lead, with two-thirds showing arsenic and nearly half containing mercury. About one in three brands carried cadmium. All of these metals are classified as harmful to health, and exposure is associated with cognitive, kidney, and cardiovascular issues, with children being especially vulnerable. Public health experts emphasize that no safe level of lead exposure exists, particularly for young children.