A Harvard nutritionist and brain expert says avoid these 5 foods to keep your ‘memory and focus sharp’

1. Foods made with industrial and processed seed oils

Highly processed oils are often extracted from soybeans, corn, rapeseed (the source of canola oil), cottonseed, sunflower and safflower seeds, and contain a lot of omega-6 fatty acids.

Excess consumption of Omega-6s can trigger the body to produce chemicals that can lead to inflammation in the brain.

If you’re sautéing vegetables or grilling fish or meat, I recommend using olive, coconut or avocado oil.

2. Foods with added and refined sugars

3. Processed foods

4. Foods with artificial sweeteners

5. Fried foods

Harvard nutritionist: This is the No. 1 vitamin to keep your brain sharp