To determine which food contains the most kcal/gram based on the given data, let's analyze the amount of saturated fat in each food. The table provides the amount of saturated fat in grams for each type of food:
1. Olive oil: 2 grams of saturated fat
2. Margarine: 2 grams of saturated fat
3. Butter: 7 grams of saturated fat
4. Lard: 5 grams of saturated fat
5. Canola oil: 1 gram of saturated fat
Saturated fat is one type of fat, and fats generally provide about 9 kcal per gram. While the table specifically mentions saturated fat, for a general estimation, more grams of saturated fat likely correlate with higher overall fat content, and consequently more kilocalories per gram.
By examining the amount of saturated fat in each food, we can identify the food with the highest amount:
- Olive oil: 2 grams
- Margarine: 2 grams
- Butter: 7 grams
- Lard: 5 grams
- Canola oil: 1 gram
Among these, Butter has the highest amount of saturated fat with 7 grams.
Therefore, based on the data in the table, butter contains the most kcal/gram.