
Grains & legumes
Strong evidenceOats
Three grams a day of oat beta-glucan lowers LDL cholesterol — a claim regulators have actually approved.
Nothing is heated, so the anthocyanins survive intact. The overnight soak releases the beta-glucan.
1 servings10 min

Combine the oats, milk, yoghurt and chia seeds in a sealable jar.
Mash in the banana and stir once more.
Cover and refrigerate for at least six hours — overnight is better.
In the morning, top with the blueberries.
If it is too thick, loosen with another tablespoon or two of milk.
Add the blueberries just before eating. Anthocyanins are vulnerable to heat and oxygen, so sitting mixed in overnight fades both the colour and the compound. Fifty grams of oats carries roughly 2 g of beta-glucan — two thirds of the 3 g a day tied to the cholesterol claim.

Grains & legumes
Strong evidenceThree grams a day of oat beta-glucan lowers LDL cholesterol — a claim regulators have actually approved.

Fruits
Moderate evidenceAnthocyanins — the pigment behind the blue — are the compound that keeps showing up in vascular and cognitive research. A handful a day is the studied dose.

Fruits
Moderate evidenceA green banana is mostly resistant starch; a ripe one is fast sugar. Choose the stage that matches what you want from it.