Biochemist and immunologist discuss dietary factors for immunity and longevity

Biochemist Aleš Dvořák and immunologist Professor Václav Větvička have shared insights regarding nutrition, immunity, and long-term health.

Professor Větvička highlights the role of beta-glucans—complex polysaccharides found in yeast, medicinal mushrooms, and cereals—in supporting the immune system. Rather than aggressively stimulating the immune response, beta-glucans act as a 'trainer' for key cells like macrophages and neutrophils, helping them respond more efficiently to pathogens. Větvička notes that while these substances are found in foods like mushrooms or bread, the body cannot always isolate them effectively from diet alone, suggesting that supplements derived from yeast, algae, or bacteria may be more reliable sources.

Separately, biochemist Aleš Dvořák emphasizes the importance of a diverse diet over supplements. He recommends consuming at least five portions of fruits and vegetables daily, with most being raw, and aiming for approximately 30 grams of fiber per day. Dvořák also advocates for a balanced ratio of fats, proteins, and sugars, alongside physical activity such as walking 10,000 steps daily. He warns against the rise of uneducated health advice on social media, urging individuals to rely on scientific evidence rather than influencer trends.