Made by Mott's, the name is a combination of "clam" and "tomato". It is also referred to colloquially as "clamato juice". Clamato is used primarily as a mix for alcoholic beverages and it is popular for this in both Canada and Mexico, but curiously much less so in the United States (outside of Canadian-American and Mexican-American communities).
The Caesar (essentially a Bloody Mary with Clamato instead of tomato juice) is one of the top selling cocktails across Canada. Clamato is also added to beer in various beer cocktails (called Micheladas in Mexico). The most basic is known as a "beer 'n clam" in Western Canada, which is simply the addition of Clamato to pale lagers. In 2001 Anheuser-Busch and Cadbury-Schweppes introduced a premixed version called the "Budweiser and Clamato Chelada"
Ingredients: Water, tomato juice, monosodium glutamate (E621), citric acid (E330), iodised salt, onion powder, celery powder, garlic powder, ascorbic acid (E300), clam powder, hot sauce, pepper, sucralose (3mg/100g), allura red (E129). Allergens: Contains allura red (E129) May have an adverse effect on activity and attention in children. Storage: Keep in a dry, cool place. Once opened, keep refrigerated.
Nutritional Facts per 100ml: Energy 14Kcal (60kJ). Fat: 0g, Saturated fat: 0g, Total Carbohydrates: 3g, which sugars are: 2g, Protein: 0.5g, Salt: 360mg