Foods can increase inflammation in the body and increase the risk of Heart Disease and Stroke.

But here is the good news

Adding Walnuts into Diet Decreases Inflammation
In a recent medical study (Ref 1) those who ate about 30-60 grams per day of walnuts after a follow up period of two years showed significantly reduced levels of inflammation.
Previous medical studies have found that regular nut consumption is associated with lower heart disease risk and lower overall cholesterol.
The researchers suggested consuming foods with higher levels of antioxidants and fiber to help combat inflammation: Green leafy vegetables (kale, spinach, cabbage, arugula), yellow vegetables (pumpkin, yellow peppers, beans, carrots), whole grains, coffee, tea and wine. The researchers also suggested limiting intake of refined sugars and grains, fried foods, sodas, and restricting processed, red and organ meat.

Inflammation is increased by eating diets high in red and processed meat, refined grains and sugary drinks, according to a study published in the Journal of the American College of Cardiology. Ref:1.

The study showed that consuming proinflammatory diets(diets which increase inflammation) had a 46% higher risk of heart disease and 28% higher risk of stroke, compared to those consuming anti-inflammatory diets.

1.(Dietary Inflammatory Potential and Risk of Cardiovascular Disease Among Men and Women in the U.S.. Journal of the American College of Cardiology, 2020; 76 (19): 2181 DOI: 10.1016/j.jacc.2020.09.535)