Baïa Food supplements and intermittent fasting: what does and doesn’t break a fast
What happens in your body during intermittent fasting
When you stop eating, your body doesn't switch off. It does the opposite: it activates metabolic pathways that have been on pause for hours because glucose was high and insulin was in charge.
In the first 4–6 hours after your last meal, your liver empties its glycogen reserves. Around the 12-hour mark, the real metabolic shift begins: glucose and insulin fall, glucagon and AMPK rise, and the body starts converting fat into ketone bodies for fuel. And this is where the word everyone keeps talking about appears.
Autophagy.
It's the process by which your cells clean themselves: they break down damaged proteins, faulty mitochondria, and cellular debris that no longer function. Yoshinori Ohsumi won the Nobel Prize in Physiology or Medicine in 2016 for describing how it works. Autophagy is activated when mTOR is suppressed and AMPK is switched on — a state that only emerges properly with fasting or serious caloric restriction.
The metabolic switch from glucose to ketone bodies begins around hour 12 of fasting and completes between hours 18 and 24, depending on prior metabolic adaptation. This is the point at which circulating β-hydroxybutyrate rises and brain insulin sensitivity improves (Mattson, Longo, Harvie. Ageing Research Reviews, 2017).
A review published in Cureus in November 2025 (DOI: 10.7759/cureus.97773) analysed 55 studies on intermittent fasting and concluded that 16:8 and alternate-day protocols produce significant improvements in HbA1c, insulin sensitivity, lipid profile and gut microbiota composition. Effects are dose-dependent: the longer the fasting window, the more pronounced the metabolic shift — up to a point.
The most commonly used protocols in clinical practice:
- 12:12 — eating within a 12-hour window. This is the minimum. Most people already do it without realising, if they have an early dinner and a normal breakfast.
- 16:8 — the classic. Skip breakfast or dinner. This is the one most people sustain long-term.
- 18:6 and 20:4 — for those who have been doing it for a while. Autophagy kicks in more strongly here.
- OMAD — one meal a day. Not for everyone, and not something I recommend without professional support.
I've been doing 16:8 four or five days a week for seven years. It's not magic. It's a tool among many. But it changed my relationship with hunger — and, above all, with cravings.
What breaks a fast and what doesn't (the practical rule)
This is where people get confused. And where the marketing gets creative.
The right question isn't "does this break my fast?" but rather "what kind of fast am I doing?" Wanting to lose abdominal fat is not the same as seeking deep autophagy for a longevity protocol. The rules change.
Types of fast and what breaks each one
| Type of fast | Goal | What breaks it |
|---|---|---|
| Functional fast | Insulin sensitivity, blood sugar control, satiety | Any carbohydrate or protein. Fats and fibres do not. |
| Strict fast | Fat loss, ketosis, digestive rest | Anything with more than approximately 25–50 kcal. |
| Autophagic fast | Cellular clean-up, longevity | Only water, black coffee and plain tea. Any amino acid or fat breaks it. |
| Therapeutic fast | Support in oncology, autoimmune conditions | Only under medical supervision. Rules are individualised. |
95% of people who fast are doing a functional fast, even if they believe otherwise. And for that type of fast, the rules are more relaxed than social media would have you believe.
The MCT question
Medium-chain triglycerides — the famous MCTs — are the oldest debate in fasting. The short answer: they provide calories, but they don't raise insulin and are metabolised directly into ketone bodies. For functional fasting they are compatible. For deep autophagy, they partially suppress it because they activate some mTOR through the mevalonate pathway.
A February 2026 review on MCTs and fasting summarises it well: MCTs reduce peak autophagic state compared to water-only fasting, but the reduction is partial, not total. For most people, the practical benefits outweigh that marginal autophagic cost.
In the pharmacy I see far greater adherence with MCTs than without. People who take them last through the fasting window much more easily, without that 11 o'clock crash that usually makes them give up and reach for a biscuit.
Why Baïa Food works well with fasting
Baïa is a Spanish brand, founded in Madrid by Guillermo and Loan, B Corp certified since 2024. The core philosophy is very specific: functional foods with no added sugars, no sweeteners, no additives, and clinically supported doses. That sounds like brand copy, but when you look at the labels, they deliver on it.
And for fasting, that matters for three reasons:
- Zero added sugar means zero glycaemic spike. What would break your fast with another brand simply doesn't happen with Baïa.
- Zero sweeteners is a detail that tends to be underestimated. Sucralose, acesulfame K, and especially polyols can produce a cephalic insulin response even without delivering real sugar. Baïa sidesteps all of them.
- Doses are within the clinical range. They don't put 100 mg of ashwagandha in for marketing purposes — they use the 600 mg of KSM-66 that was used in the studies. The difference matters.
There are cheaper brands. There are brands with more flavour options. There aren't many with this combination of transparency and properly calibrated doses. That's why it's the one I recommend most often when someone asks what to take during a fast and wants to buy a single brand.
Baïa supplements you can take during a fast
These are the ones I use myself and the ones I dispense most often. Each serves a different purpose, so the order here is by time of day rather than preference.
Cúrcuma Latte (morning, afternoon, whenever you like)
The cleanest of the range for fasting. Organic turmeric with ginger, cinnamon, coconut powder and black pepper. The black pepper isn't decorative: piperine multiplies the bioavailability of curcumin by twenty. Without that combination, almost all the turmeric you take passes straight through without being absorbed.
It provides around 25 kcal per serving when prepared with water — virtually zero impact on insulin. If you're doing a functional fast, take it without worry. If you're doing a strict autophagic fast, save it for your eating window.
Why I particularly like it during fasting: prolonged fasting slightly raises intestinal inflammation markers in some people — especially those who are only a few weeks into adapting. Curcumin may help buffer that.
Piperine from black pepper increases the bioavailability of curcumin by 2,000% according to the landmark study by Shoba et al. (1998, Planta Medica). Without black pepper, 95% of ingested curcumin is excreted without being absorbed. This is why turmeric without piperine — or without fat — achieves very little.
Focus Creamer (mid-morning)
Citicoline, L-theanine, coconut MCTs. Citicoline raises phosphatidylcholine levels in neuronal membranes and L-theanine takes the edge off caffeine. It's a combination that works very well in practice for people who hit a cognitive slump at 10:30 or 11 in the morning while fasting.
It provides around 30–35 kcal per serving, almost entirely from the MCTs. For functional fasting, it's fine. For autophagy, it's not.
I take it when I have demanding meetings mid-morning and know that black coffee alone won't be enough. It's the creamer I've tested most extensively on myself.
The combination of caffeine and L-theanine (in a 2:1 ratio) improves attention and reaction time more than caffeine alone, according to a meta-analysis published in Nutritional Neuroscience (Owen et al., 2008). Citicoline adds to this by raising brain phosphatidylcholine levels — a precursor of acetylcholine, associated with memory and focus.
Microbiotic Creamer (from hour 16 of your fast onwards)
This is where things get interesting. It contains chicory inulin with FOS (a prebiotic fibre your body doesn't digest but your microbiota does), Lactospore (a spore-forming probiotic that survives gastric acid), lion's mane extract and coconut MCTs.
The million-pound question: does this prebiotic fibre break the fast? Technically, no. Your small intestine doesn't absorb it, so it doesn't enter your bloodstream as calories. It reaches the colon where your microbiota ferments it, producing short-chain fatty acids (butyrate, propionate, acetate), which do enter circulation — but at a very slow rate and without an insulin spike.
A study published in Frontiers in Nutrition (October 2024) showed that intermittent fasting combined with prebiotic fibre produces greater alpha-diversity of the microbiota than fasting alone. Inulin and FOS have the strongest evidence base for this effect.
For me, the Microbiotic Creamer represents "upgraded fasting": when I'm 16–18 hours in, this is what I reach for. I'm feeding the good bacteria while I'm not eating myself. That sounds strange when you put it that way, but it's exactly what's happening.
What I don't recommend during a fast
The Beauty Creamer contains 10 g of hydrolysed collagen per serving. That's 40 kcal of pure protein — amino acids that activate mTOR. It breaks an autophagic fast completely, and it breaks a functional fast for many goals. Don't take it during your fasting window: save it for your first meal or post-workout breakfast. The whey protein and plant protein are the same: they break the fast. Both are excellent — but for the eating phase.
How to break your fast with Baïa: the first meal
Breaking your fast badly throws away half the work of the fast itself. If you open your eating window with a croissant and a milky, sugary coffee, the resulting insulin spike leaves you worse off than if you hadn't fasted at all. I see this in the pharmacy every week.
The rule that works: break with protein, fat and fibre. Carbohydrates at the end, not the beginning.
That's why the Baïa pairing I recommend for breaking your window is:
- Pure Protein Whey Isolate — 22 g of protein per serving, negligible lactose because it's an isolate, no sweeteners. I take it with water or almond milk and a serving of Cúrcuma Latte stirred in. Ready in two minutes.
- Plant Protein Cacao — the plant-based option, 18 g of complete protein from pea and rice, also sweetener-free. For those who don't tolerate dairy or follow a vegan diet.
One word of caution. Protein isolates on their own can break the fast too abruptly for some people: a pure amino acid profile generates a notable insulin response. If you're particularly sensitive, have some vegetables or a handful of nuts first and leave the protein for 15–20 minutes later. My personal protocol is exactly that: olives, a little avocado, wait ten minutes, then a whey shake with turmeric. Find what works for you. But always break with something that isn't sugar.
Protocol I recommend in the pharmacy
This is the framework we give when someone starts 16:8 and wants to support it with Baïa products. It's the sensible version, not the Instagram version.
Hours 0 to 12 (overnight)
A complete final meal for the day: protein, fat, vegetables and a small amount of complex carbohydrates if you've trained. No supplements at midnight.
Hours 12 to 14 (on waking)
Water with a pinch of salt. Black coffee if you want it. If you struggle to get going, a Baïa Cúrcuma Latte with hot water. This moment is for hydrating and activating, not eating.
Hours 14 to 16 (mid-morning)
This is where most people slip. If you notice brain fog, Focus Creamer with coffee or tea. If you feel hungry, Microbiotic Creamer in a plant-based drink. If you're going fine, don't add anything.
Hour 16 (opening your eating window)
Break with fat or fibre first (nuts, avocado, hummus). After 15 minutes, a whey or plant protein shake with Cúrcuma Latte. This is now your first proper meal.
If you're doing 18:6 or 20:4 the framework shifts, but the logic is the same: during the fast, whatever you take needs to make physiological sense. And when you break it, protein first, never sugar.
And before I close — something I always say in the pharmacy: fasting is not for everyone. There are profiles that should never fast without professional support, and I cover them here because it saves a lot of conversations later.
⚠️ Pregnant or breastfeeding women
Caloric and protein requirements are too high. This is not the right time.
⚠️ People with a history of eating disorders
Fasting can reactivate restriction patterns. Don't attempt it without support from a psychologist or dietitian.
⚠️ Type 1 or type 2 diabetes with glucose-lowering medication
Serious risk of hypoglycaemia. Only under medical supervision with an adjusted treatment plan.
⚠️ Children and adolescents
They are in a growth phase. No.
Baïa Food selection to support your intermittent fasting
Of the eleven Baïa products we stock at Farma2Go, these are the four that customers who come into the pharmacy asking about fasting supplementation actually use. Three for the fasting window and one for breaking it.
Quick comparison: which to take and when
| Product | When to take it | Compatible with | Key actives |
|---|---|---|---|
| Cúrcuma Latte | Morning or afternoon during the fast | Functional fast + light autophagic fast | Curcumin + piperine + ginger |
| Focus Creamer | Mid-morning during the fast | Functional fast | Citicoline + L-theanine + MCTs |
| Microbiotic Creamer | From hour 16 of the fast | Long functional fast | Inulin + Lactospore + lion's mane |
| Pure Protein Whey Isolate | Opening your eating window | No type of fast (breaks it) | 22 g grass-fed whey isolate |
Baia Food Microbiotic Creamer 300g
My personal choice for longer fasts: chicory inulin, Lactospore and lion's mane. Feed your microbiota while you're not eating.
Baia Food Focus Creamer 150g
Citicoline and L-theanine with MCTs. For the mid-morning cognitive slump during a fast. Complements or replaces your coffee.
Baia Food Cúrcuma Latte 150g
The cleanest option for fasting: turmeric with active piperine. Natural anti-inflammatory and virtually zero calories when taken with water.
Baia Food Pure Protein Whey Isolate Cacao 750g
For breaking your fast: grass-fed whey isolate, cacao flavour, no sweeteners. The first proper meal done right.
If I had to choose just one, it would be the Microbiotic Creamer. It's the one that makes the most difference over time for people who fast regularly: the microbiota responds, digestion improves and the discomfort that can follow longer fasts almost disappears. But the combination I recommend most often is Cúrcuma Latte in the morning and Pure Protein to break the window. That pairing resolves 80% of cases.
Frequently asked questions about Baïa Food and intermittent fasting
Does taking Microbiotic Creamer break a fast? +
It depends on your goal. If you are fasting for deep autophagy, it does partially break it — it provides around 35 kcal per serving and the MCTs activate some mTOR. If your goal is metabolic flexibility, blood sugar control or satiety, it is compatible: the inulin feeds the microbiota without raising insulin.
Can I add Baïa Food Cúrcuma Latte to my coffee while fasting? +
Yes, in a small dose. Turmeric, ginger, cinnamon and black pepper add virtually no calories. If you prepare it with water or black coffee (not milk) you maintain a functional fast. The coconut powder adds a little fat, but the amount per serving is minimal.
Which Baïa Food product should I take to break my fast? +
Pure Protein Whey Isolate or Plant Protein, depending on whether you prefer whey or a plant-based option. Breaking with 20–25 g of quality protein is the most solid approach: it stabilises blood sugar, activates mTOR for muscle protein synthesis and prevents the rebound hunger that typically follows breaking a fast with carbohydrates.
Is Focus Creamer better than coffee for fasting? +
It's complementary, not a substitute. Citicoline and L-theanine provide focus without a cortisol spike, and the MCTs deliver ketone energy. I use it mid-morning when coffee alone starts making me jittery. Don't take it after 6 PM if you intend to sleep — citicoline is stimulating.
How many hours do I need to fast before supplementation is worthwhile? +
Below 12 hours you don't need anything. Between 14 and 16 hours, a Cúrcuma Latte or Focus Creamer can help with concentration and satiety. From 18 hours onwards, the Microbiotic Creamer helps protect the microbiota during longer fasts.
Is intermittent fasting suitable for everyone? +
No. Pregnant or breastfeeding women, people with a history of eating disorders, type 1 diabetes, very low body weight or children should not attempt it without medical supervision. If you take regular medication, speak to your pharmacist or GP first.
DISCOVER MORE ABOUT FUNCTIONAL NUTRITION AND SUPPLEMENTATION
Pharmacist recommendations for combining Baïa Food with your intermittent fasting
Start with one. Don't buy all four at once — you'll overwhelm yourself. My recommendation: Cúrcuma Latte in the first week to see how you get on with it and how your body tolerates it during the fast. If that goes well, add the Microbiotic Creamer in the second week. And if you exercise, bring in the Pure Protein to break your window.
And ask before you buy. If you have a medical condition, take regular medication or are only a few weeks into fasting, it's worth checking the plan before spending money on something that may not fit your situation.
Tabla comparativa: Suplementos Baïa Food y ayuno intermitente
| Tipo de ayuno | Objetivo | Qué lo rompe |
|---|---|---|
| Ayuno funcional | Sensibilidad a la insulina, control de glucosa, saciedad | Carbohidratos o proteína. Las grasas y fibras no. |
| Ayuno estricto | Pérdida de grasa, cetosis, descanso digestivo | Cualquier cosa con más de 25-50 kcal. |
| Ayuno autofágico | Limpieza celular, longevidad | Solo agua, café solo y té. Cualquier aminoácido o grasa lo rompe. |
| Ayuno terapéutico | Apoyo en oncología, enfermedades autoinmunes | Solo bajo supervisión médica. Reglas individualizadas. |
Preguntas frecuentes
Referencias científicas
