Hreint skyr, prot, kollagen, epli, musli (1 piece)

Choose plain, unsweetened Hreint skyr and avoid flavoured varieties or added syrups.

Replace sweetened muesli with a small portion of rolled oats, chia seeds, flaxseed, walnuts, or almonds; these add fibre and fat that can slow the rise.

Keep the apple portion modest and eat it whole, with the skin, rather than grated, juiced, or blended.

Add cinnamon and a handful of berries such as raspberries, blueberries, or strawberries for flavour instead of honey, jam, dried fruit, or sugar.

Have the skyr bowl after or alongside a balanced meal containing protein, vegetables, and healthy fats, rather than as a carbohydrate-heavy standalone snack.

Test smaller portions of muesli and apple separately for several days to identify which ingredient and serving size drives your response most.