How GLP-1 Weight-Loss Drugs Are Changing Demand
Weight-loss drugs are not just changing healthcare. They are changing supermarkets, restaurants, beauty products and consumer spending.
GLP-1 drugs, often discussed under names such as Wegovy, Ozempic and Mounjaro, can reduce appetite and help people feel fuller. They have reduced demand for some food and drink products among users. They have also created new opportunities in areas such as protein, supplements, hydration, skincare and haircare.
Lower Demand for Some Food and Drink Products
The clearest effect is on food and drink.
YouGov, a polling and market research company, found in March 2026 that British users of weight-loss drugs reported eating fewer snacks, reducing fast food consumption, drinking less alcohol and drinking fewer fizzy drinks. It also found that some users were spending less on groceries and takeaways than before starting treatment.
The Grocer, a trade magazine, has reported the same broad pattern. One article said adults who have taken GLP-1 weight-loss drugs spend less on groceries and takeaways, even after they have stopped taking them. Another reported that weight-loss drugs had wiped £780m off Britain’s grocery sales, equivalent to 299 million fewer units purchased.
PwC, a large professional services firm, has also found a similar pattern in the US. It reported that GLP-1 users spent around 11% less on most food categories, with the largest reductions in sweet and salty snacks and baked goods.
Rising Demand for Other Products
As demand falls for some products, demand may rise for others.
PwC has also reported that GLP-1 users were buying fewer sweet treats and salty snacks, while buying more fresh produce and protein. It also reported that many users experienced a meaningful change in clothing size, with some spending more on clothing after several months of use.
The Grocer has also reported that GLP-1 side effects are driving demand for skin and hair products, with sales of skin, hair and hydration products expected to grow as users try to manage unwanted side effects.
How firms may respond
Businesses will not just sit and watch.
Food companies may launch smaller portions, high-protein products or healthier snacks. Restaurants may offer lighter meals. Supermarkets may create weight-management ranges. Beauty brands may promote products linked to hair, skin and hydration.
This is how markets adapt.
When demand changes, firms change their products, prices, packaging and marketing. The same trend can be a threat in one market and an opportunity in another.
Exam takeaway
GLP-1 drugs are a strong real-world example of changing demand.
They show that demand is not fixed. It can shift when consumer behaviour, health concerns and preferences change.
A student could write:
GLP-1 drugs provide a real-world example of how changes in consumer behaviour can shift demand across many different markets. As users experience lower appetite, demand for snacks, sugary drinks, alcohol and fast food has fallen among some users. At the same time, demand for related products such as protein foods, supplements, hydration drinks, skincare and haircare may rise.