Tuna in Water (Canned) (100 G)

Choose plain tuna packed only in water and salt; compare labels and avoid varieties with added sugar, sweet sauces, or flavored seasonings.

Check portion size and eat the tuna slowly; a smaller serving split across meals may reduce an unexpected rise.

Pair tuna with high-fiber, low-starch vegetables such as leafy greens, cucumber, broccoli, peppers, or zucchini.

Add a source of unsaturated fat, such as olive oil, avocado, or a small handful of nuts, rather than eating the tuna with refined crackers or white bread.

Avoid sweetened drinks, juice, sugary condiments, and refined starches alongside the meal; use lemon, vinegar, herbs, mustard without added sugar, or mayonnaise without added sugar for flavor.

Take a gentle 10–20 minute walk after eating, and recheck your response on a different day to confirm that the tuna—not another meal component or timing factor—is the trigger.