Final answer:
According to McBurney and Collings, the average threshold for detecting the taste of table salt is 1 gram in 2 liters of water. Salt is essential for health but is often consumed in excess.
Step-by-step explanation:
According to McBurney and Collings, the average threshold for human taste is approximately 1 gram of table salt in 2 liters of water. Salt plays a crucial role in our health by providing essential ions and preserving food. However, concerns exist about excessive salt consumption in modern diets, which can lead to health issues. The ability to taste saltiness strongly indicates an evolutionary link between salt intake and survival. While salt is fundamental for health, our daily intake often exceeds what is necessary, highlighting the importance of balance in our diet.