Social media has become a major platform for sharing nutrition trends, with users posting about everything from protein coffees and sea moss gel to “girl dinner” and greens powders. To address questions around these viral trends, experts at the University of California San Diego have analyzed some of the most popular topics shaping public perceptions of food and health.
Jennifer Smith, professor of marine biology at Scripps Institution of Oceanography, discussed the popularity of sea moss gel, which is marketed as a superfood. Smith cautioned that “sea moss” is a generic term that can refer to any type of seaweed. “Sea moss broadly could refer to any seaweed,” she said, noting that different products contain varying nutrients depending on their source. Smith warned about possible contamination: “If you’re harvesting seaweed from a polluted harbor, they will have heavy metals and potentially other toxins in them.” She emphasized the lack of transparency in supply chains and the importance of knowing how products are sourced and tested for contaminants. Smith advised consumers to buy from reputable sources.
The demand for high-protein diets has also grown, with new offerings such as Starbucks’ protein coffees entering the market. Deepa Sannidhi, associate clinical professor at UC San Diego School of Medicine’s Department of Family Medicine, explained that most healthy adults require about 0.8 grams of protein per kilogram of ideal body weight each day—less than many online sources suggest. Some groups may need more protein, but excessive intake can lead people to neglect other important nutrients found in fruits, vegetables, beans and whole grains. Sannidhi stated: “It’s usually not unsafe to eat really high amounts of protein — up to 2 grams per kilogram of adjusted body weight,” but those with chronic kidney disease should consult their doctor.
Another trend involves increasing fiber intake through supplements like psyllium husk or chia seeds—a practice known online as ‘fibermaxxing.’ Sannidhi pointed out that while fiber is beneficial for gut health and most adults should aim for 25-35 grams daily from whole foods, rapid increases via supplements can cause digestive issues such as bloating or constipation if not accompanied by adequate hydration.
Social media posts labeled “girl dinner” or “what I eat in a day” are particularly common among young women and often present meals that are visually appealing but sometimes nutritionally limited. Kerri Boutelle, professor at UC San Diego School of Medicine and clinical psychologist at Herbert Wertheim School of Public Health and Human Longevity Science, expressed concern: “This trend could normalize disordered eating because there is the potential to show how little someone is eating in a day.” Christine Crofts from UC San Diego’s Department of Sociology noted these videos contribute to broader online themes but can also promote creativity and reduce food waste.
Supplements such as collagen powders or daily greens blends have proliferated across social feeds. Ryan Bradley, associate professor at Herbert Wertheim School of Public Health and Human Longevity Science and naturopathic doctor, explained that while some supplements may provide certain nutrients lacking in people’s diets, they do not replace whole foods: “It’s always best to consult a trained, licensed health care provider who has specific training in clinical nutrition using natural products.” He also mentioned concerns over contaminants like heavy metals found in some plant-based products.
Creatine supplementation has moved beyond athletic circles into mainstream wellness discussions. Bradley said evidence mainly supports its use for improving athletic performance; research into cognitive or general wellness benefits remains limited. He described creatine as generally safe when used according to instructions but advised consulting healthcare professionals before use alongside other stimulants.
Interest in reducing alcohol consumption—known as the sober-curious movement—is growing among younger adults. Christine Zoumas from Herbert Wertheim School highlighted health benefits associated with cutting back on alcohol: “Almost all alternatives would be better than alcohol,” she said but noted mocktails may contain high sugar levels. Sandra Brown from UC San Diego added: “People are much more aware of the health consequences of alcohol than ever before,” citing declining drinking rates among adults under 35 based on recent Gallup polling data (https://news.gallup.com/poll/508618/fewer-americans-drinking-alcohol.aspx). Brown observed that taking breaks from drinking can help individuals understand its impact on sleep and mood: “Even cutting back can reduce the adverse impacts on health.”
Overall, experts advise approaching viral nutrition trends with caution—focusing on balanced diets rather than extreme changes—and seeking guidance from qualified healthcare professionals when considering supplements or significant dietary adjustments.
