Cellular health has become the phrase of the year in wellness, and like most phrases of the year it is used to sell a great deal. Underneath the noise is a useful idea: that energy, digestion, sleep, stress and ageing are not separate problems but one system, and that the system runs on cells. This guide explains what the term actually means, what the three practitioners in the Sanno Health cellular health podcast series agree on, and where supplements honestly fit.
What does cellular health mean?
Every organ in the body is made of cells, and every cell has the same basic jobs: take in nutrients, turn them into energy, build and repair its own structure, defend itself from damage and clear its own waste. Cellular health is a way of describing how well those jobs are being done across the body as a whole, rather than looking at one symptom or one organ at a time.
It is not a diagnosis and it is not something a blood test measures directly. It is a lens. The practitioners in the podcast series, Dr Mayoni Gooneratne, Daniela Lawler and Dr Monisha Bhanote, come from very different backgrounds, surgery, nutrition and pathology, and reach for the same lens because it explains why fixing one thing in isolation so often disappoints.
Why does energy come up first?
Because it is what people notice. Inside almost every cell are mitochondria, the structures that convert food and oxygen into the energy the cell uses. Dr Gooneratne calls them the light switch of the house: can you keep the lights on through the day, or are they flickering by four in the afternoon? When people say their energy is not what it was, this is the level at which the conversation belongs.
The nutritional side of that is unglamorous. Dr Gooneratne's first observation about many of the women she sees is that they are simply not eating enough, and her first advice is protein, vegetables and complex carbohydrates that occur in nature, eaten early enough in the day. Before any supplement, the question is whether the fundamental inputs are there. Her full framework is in Keep the lights on.
Where does the gut fit?
Two of the three practitioners put the gut in the foundations. Dr Bhanote's practical version is dietary diversity: aim for around thirty different plant foods a week, counting herbs, spices, grains, pulses, nuts and seeds, not just fruit and vegetables, and add one fermented food a day. Daniela Lawler adds a useful correction to the current obsession with the microbiome: the gut wall itself is made of cells, so the health of those cells is the environment the microbiome lives in. The microbiome matters, but it is one part of a larger system.
Why do light and sleep belong in a conversation about cells?
Because food is not the only information the body receives. Daylight in the morning and darkness at night set the body clock that governs when hormones rise and fall and when digestion is switched on. All three practitioners recommend the same thing in different words: get outside early, protect the day and night cycle, and treat sleep as a foundation rather than a luxury. It costs nothing and it is the piece most people skip.
What about stress and ageing?
The practitioners encourage a broader definition of stress than the mental one. Poor sleep, inadequate food, environmental exposures and constant pressure all add to the body's total load, and the body does not distinguish neatly between them. Dr Bhanote frames ageing the same way: two people with the same birthday can have very different biological ages depending on how they eat, sleep, move and manage that load. Longevity, in her words, is not about the number of years but about how the body functions across them.
So where do supplements fit?
Last, and specifically. The consistent message across all three conversations is start with the foundations, understand the inputs, then personalise the support. Within that, a small number of nutrients carry authorised EU claims that are directly relevant to what cellular health describes.
On energy: magnesium, iron, iodine and the B vitamins thiamine, riboflavin, niacin, B6, biotin and B12 all contribute to normal energy-yielding metabolism, and magnesium, riboflavin, niacin, B6, B12, folate and vitamin C contribute to the reduction of tiredness and fatigue.
On protecting cells: vitamin C, vitamin E, riboflavin, zinc, selenium, copper and manganese contribute to the protection of cells from oxidative stress.
On building and dividing cells: zinc contributes to normal DNA synthesis, and magnesium, zinc, iron, folate, vitamin B12, vitamin D and calcium each have a role in the process of cell division. Choline contributes to normal lipid metabolism. Phosphatidylcholine, which is discussed in the podcast series, is one of the dietary forms of choline.
Anything sold to you as a cellular health product beyond those nutrients, whether it is a mitochondrial formula, a longevity blend or an antioxidant complex, has to be judged on its composition, form and dose, because there is no authorised claim it can make. That is not a reason to dismiss it. It is a reason to read the label.
Frequently asked questions
Is cellular health the same as longevity?
They overlap. Longevity content focuses on ageing; cellular health is the broader framework that longevity practitioners tend to work within. Neither is a medical term.
Can a supplement improve my mitochondria?
Not on its own. Mitochondria depend on the basics: food, sleep, movement and morning daylight all influence how your body produces energy. Among nutrients, magnesium and the B vitamins thiamine, riboflavin, niacin, B6 and B12 contribute to normal energy-yielding metabolism.
What is the one thing all three practitioners agree on?
Foundations before interventions: enough food, plant diversity, morning light, protected sleep and a realistic view of stress, with supplements considered afterwards and specifically.
Where can I hear the podcast series?
The Sanno Health Podcast cellular health series is produced with Amrita Nutrition Global and BodyBio. The episodes with Dr Mayoni Gooneratne and Daniela Lawler are available now on the Sanno Health channels, and Dr Monisha Bhanote's episode follows on 2 November.
Read the guide: Keep the lights on, Dr Gooneratne's framework for energy in midlife · Shop the range: Energy and B vitamins
Written by Kris Barnes for Supplement Hub. Reviewed for compliance with Regulation (EC) 1924/2006. The practitioners named appear in an educational capacity and have not reviewed or endorsed any product. Adapted from Amrita Nutrition's practitioner article series, with permission.
