Overnight Oats with Flax and Chia: A Complete Guide for the Heart and the Vessels

There exists a preparation so simple, and yet so complete from the point of view of nutrition, that one wonders why it has not become the habitual breakfast in every home. The overnight oats with flax and chia represent exactly this: a dish that asks for nothing more than five minutes of attention in the evening, and which gives back, in the morning, a meal that nourishes the arteries, sustains the energy, and does not burden the digestion.

In this article I shall explain not only the recipe, but the reasoning behind each ingredient, the correct proportions, and the way in which this breakfast collocates itself within a broader care of the circulatory system.

Why the Cold Preparation Is Superior to the Cooked One

Many persons ask me: “But is it not the same thing to cook the oats in a pot?” And I must respond that, no, it is not the same thing at all.

When one cooks the oats at high temperature, a part of the soluble fibres — in particular the beta-glucans, which are the substance most precious for the control of cholesterol — undergoes a partial degradation. The cold soaking, on the contrary, permits to the starch to hydrate itself slowly, to the fibres to remain intact, and to the enzymatic activity to begin a gentle predigestion.

In practice, what happens is this:

• The beta-glucans conserve their gelatinous structure, which in the intestine slows the absorption of sugars and of fats
• The phytic acid, which impedes the assimilation of minerals, is reduced by approximately 20–30% during the nocturnal soaking
• The resistant starch increases, and with it the nourishment for the beneficial bacteria of the gut

The result is a breakfast with a glycaemic index notably lower than that of the porridge cooked on the flame. For who has familiar predisposition to cardiovascular problems, this difference is not a detail of little account.

The Role of Flax and Chia for the Circulatory System

Here one must speak with clarity, because around these two seeds there exists much confusion and also much exaggeration.

The flax seeds are, among the vegetal foods, the richest source of alpha-linolenic acid, that is to say the omega-3 of vegetal origin. But attention: the whole seed passes through the intestine without being digested. It is absolutely necessary to grind them at the moment, or at most to conserve them ground in the freezer for no more than one week. Only in this way the organism can absorb the omega-3 and the lignans, which have a documented action of mild reduction on the arterial pressure.

The chia seeds, on the other hand, do not require grinding. Their mucilage — that gelatinous substance that one sees forming around the seed in contact with the liquid — is itself a soluble fibre of great value. This mucilage contributes to the regularity of the intestinal transit and to the moderation of the post-prandial glycaemic peak.

Together, the two seeds bring approximately 4–5 grams of omega-3 per portion, a quantity that, inserted in a regular alimentation, supports the elasticity of the vessel walls.

The Base Recipe: Proportions and Method

I give here the recipe as I prepare it, with the doses calibrated for one person. The preparation requires in total five minutes in the evening.

The method, step by step:

1. In a glass jar with lid, one puts the oats, the ground flax, the chia, and the pinch of salt.
2. One adds the milk and the yoghurt, and one stirs well with a spoon for about twenty seconds, in order that the chia does not form lumps at the bottom.
3. One closes the jar and one places it in the refrigerator for a minimum of six hours, ideally eight.
4. In the morning one stirs again. If the consistency results too thick, one adds a spoonful of milk.

That is all. No cooking, no particular equipment.

Variations for Every Season

The base recipe is a skeleton upon which one constructs the flavour according to the period of the year and the necessities of the body.

In autumn and winter, one adds half a grated apple, a pinch of cinnamon, and three or four walnut halves broken by hand. The cinnamon, in addition to the perfume, has a small but real action on the glycaemic response.

In spring, fresh berries — blueberries, raspberries — brought to the moment of consumption, so that they do not become mushy during the night.

In summer, one can substitute the yoghurt with a spoonful of almond butter and add slices of fresh peach. The meal becomes lighter and more refreshing.

A piece of advice that I repeat always: the sweetness should come from the fruit, not from added sugar. If one feels the necessity of a sweet note, a small teaspoon of raw honey suffices. The refined sugar, in a breakfast thought for the health of the vessels, has no reason to be present.

How to Integrate This Breakfast into a Routine of Vascular Care

Let us be honest with ourselves: no single food, however well composed, can by itself protect the heart and the arteries. What makes the difference is the continuity of habits, the ensemble of choices repeated every day.

The overnight oats with flax and chia function well as a pillar of the morning, but they give their best fruit when they are accompanied by other attentions:

• A walk of at least thirty minutes at a brisk pace, better if in the hours of light
• The reduction of cured meats and of foods rich in hidden salt
• A control of the arterial pressure at least once every three months after the age of forty
• An adequate hydration, of no less than one litre and a half of water in the day

Some readers have written to me asking about integrators to associate to this type of alimentation. In the cases in which the physician deems it opportuno, there exist specific formulations thought for the support of the vessel walls. For example, I have had way to examine the composition of Cardiobalance, a dietary supplement based on vegetal extracts and micronutrients oriented to the vascular tone, about which one can find the detailed information on the page cardiobalance.biz It is not a substitute for the alimentation, this is clear, but for some persons it represents a reasonable complement, always after the opinion of the treating physician.

What I wish to underline is this: the logic must be that of the whole. The breakfast with oats, flax, and chia is one tile of the mosaic. The movement is another. The sleep of quality is another still. And, where the physician considers it, also a targeted supplementation can find its collocation within this picture.

Common Errors to Avoid

In the years I have seen repeated always the same mistakes, and I list them here so that who reads can avoid them:

• Using instant oats. They are pre-cooked and have a glycaemic index much higher. One must choose the traditional flakes, those that require cooking, even if in this case they are not cooked.
• Putting whole flax seeds. As I have explained, they pass through undigested. One must grind them, with a small coffee grinder dedicated to this use.
• Soaking for only two hours. The chia and the oats need a minimum of six hours in order to hydrate themselves completely. If one prepares the jar at eleven in the evening for seven in the morning, the result will be hard and unpleasant.
• Exaggerating with the quantities. Forty grams of oats are sufficient. If one puts eighty, one obtains a meal too heavy, which slows the digestion and provokes somnolence.
• Adding dried fruit in excess. Dried cranberries, raisins, candied peel: they seem healthy but they concentrate sugars. Better the fresh fruit, or at most three or four pieces of dried apricot.

A Final Word of Common Sense

I do not wish to conclude this article with grand promises. The overnight oats with flax and chia are not a remedy, they do not cure anything, they do not substitute any therapy. They are, however, an excellent habitual breakfast, easy to prepare, economical, and constructed on ingredients of which the science has documented, in the course of decades, the favourable action on the lipid profile and on the vascular function.

The true secret, as in all things that concern the health, is not the exceptional gesture made once, but the small gesture repeated every morning, with constancy and with pleasure. One prepares the jar in the evening, one closes the lid, and one goes to sleep knowing that, the day after, the body will find something good. And this, in the end, is already a form of care toward oneself.