Provided herein are compositions, articles of manufacture, food products, and methods for treating certain conditions, such as fibrotic disease (e.g., asthma). For example, in certain embodiments, provided herein are food products (e.g., that are ketogenic) that contain high levels (e.g., at least 10% by weight of the food product) of capric acid (C10), myristic acid (C14), or combination thereof (e.g., as free fatty acids or as triglycerides). In other embodiments, methods are provided for receiving an order for such a food product, and shipping the food product to a subject with fibrotic disease (e.g., after receiving or verifying prescription information). In some embodiments, methods are provided of administering or providing a composition to a subject such that the subject receives at least 50 grams per day (e.g., 200 grams per day), on multiple days, of capric acid (C10), myristic acid (C14), or combination thereof.