Final answer:
Without specific data, it is not possible to determine the percentage of people who eat at McDonald's at least once a week and are heavy users. Regular consumption of fast food has been linked to various negative health effects due to its high levels of unhealthy fats, added sugars, and sodium. Individuals can make healthier choices by opting for lower-fat options and choosing water instead of sugary drinks.
Step-by-step explanation:
In order to determine what percent of people who eat at McDonald's at least once a week are heavy users, we would need specific data on the number of people who eat at McDonald's and the number of them who are considered heavy users. Without this data, it is not possible to provide an accurate percentage.
However, it is important to note that regular consumption of fast food, including McDonald's, has been linked to various negative health effects such as obesity, type 2 diabetes, heart disease, and high blood pressure. These health risks are primarily associated with the high levels of unhealthy fats, added sugars, and sodium found in fast food.
To make healthier choices, individuals can opt for lower-fat options, such as grilled chicken or salads, and choose water or unsweetened beverages instead of sugary drinks.