Like all whole grains, rolled oats are a great source of soluble fibre, which fills your stomach and keeps you feeling satiated for a long period of time. Rios added that fibre also helps stabilise blood glucose throughout the day to avoid feeling intense hunger pains.
Although overnight oats are usually made with rolled oats (which offer four grams of fibre per serving), you can also make them with slightly less-processed, higher-fibre steel-cut oats (five grams per serving) — you just need to soak them longer.
You can also up the fibre of your recipe by adding flaxmeal, chia seeds, berries, apple, or pear. You can even add mashed chickpeas or fibre-rich avocado — don't worry, you can't taste them.