Yes, you can use chia seeds as a natural alternative to pectin to thicken jams and jellies. Chia seeds have natural gelling properties, which allow them to absorb liquid and form a gel-like consistency when mixed with water or fruit juices. Using chia seeds as a natural thickener in jam is a healthy and convenient way to create delicious spreads without the need for commercial pectin or excessive sugar. Plus, you'll get the added nutritional benefits of chia seeds, such as fiber, protein, and healthy omega-3 fatty acids.