Sources
In general, minimize protein from foods like fatty beef, hot dogs, and deli meats.
Instead, try getting protein from:
+ eggs
+ nuts and seeds
+ unsweetened yogurt
+ lean chicken and turkey breast
+ legumes (lentils, chickpeas, beans)
+ fatty fish (salmon, mackerel, herring)
If you eat meat, consider swapping out some animal proteins for plant proteins to tip the plant-to-animal ratio in your favor.