Dr Stavy · Patient information
Supportive Care Alongside Cancer Treatment
Supportive care aims to help with the effects of cancer and its treatment while oncology remains responsible for cancer treatment. Any additional approach needs a clear purpose, relevant evidence and a safety review. It must not replace, delay or claim to improve the cancer treatment itself without evidence for that exact claim. [1]

What does supportive care alongside oncology mean?
Supportive care aims to help with the burden of illness and treatment. The goal may be a specific symptom, distress or a daily task that has become hard. This is different from treating the cancer itself. Before adding care, name the need you want help with. Ask what the visit could do for that need and how it fits with your cancer team's plan.
The term functional medicine does not show that a whole package benefits people with cancer. Evidence may support a specific approach for a specific symptom in a defined group. That evidence should not be expanded into a claim about survival, immunity or control of the cancer itself.
An visit should allow you to say what matters most now. That may be a practical question about meals, an uncomfortable symptom or anxiety about treatment. You should not need to commit to a broad programme before the doctor has explained if it is suitable for that concern.
Keep the oncology team informed about any extra care you are considering. Their knowledge of the cancer, treatment and current risks is essential. If a planned approach cannot be coordinated safely, deferring it or seeking help within the cancer service may be the more suitable next step.
This page explains questions to ask. It does not imply that every supportive approach mentioned in research is available through Dr Stavy or suitable for every person. Confirm the actual scope and practitioner before booking, especially during active treatment.
How do needs differ during treatment and recovery?
During treatment, any extra care must fit with the cancer plan and the advice you have been given. After treatment, you may want help with effects that persist or with daily life. The needs can change over time. Neither stage is a reason to promise to detoxify treatment or prevent cancer returning. Ask what the support is meant to help with now, and how that aim will be reviewed.
| Situation | What to clarify before adding support |
|---|---|
| Active cancer treatment | Does the oncology team know about the proposal, and could it affect treatment or current safety advice? |
| New or worsening symptoms | Does this need the cancer team's urgent contact route rather than a routine supportive appointment? |
| Recovery after treatment | Which ongoing concern needs help, and what follow-up remains with the cancer service? |
| Long-term treatment or complex illness | Who coordinates advice, and how will changes in your condition affect the support plan? |
Tell the person you see what treatment you are receiving and what is planned next. Bring relevant letters and the contact details for the team involved. A short summary can be helpful. But it should not replace the clinical details needed to judge a proposal safely.
Do not assume that advice suitable before a treatment change remains suitable afterwards. Ask when a plan needs to be reviewed and who should be told about changes. This is especially important if several professionals or complementary practitioners are involved.
Your capacity for visits may also change. Fatigue, travel and the demands of treatment can make an extra programme burdensome. Ask what support is likely to add useful value now and what could wait. More visits are not by itself better care.
Which supportive approaches have evidence for specific symptoms?
Some forms of support have evidence for particular symptoms. The 2023 SIO-ASCO guideline looks at anxiety and depression in adults with cancer. That is its scope. It does not show that functional medicine as a whole treats cancer or helps people live longer. Ask which approach and which outcome a claim refers to. Evidence for help with distress cannot be turned into a promise about tumour control. [4]
When a study is offered as a reason to try something, ask which symptom it measured. Also ask who took part, how the approach was delivered and what it was compared with. A finding about distress cannot be used as proof of a benefit for tumour response or recurrence risk.
The strength of evidence can vary between approaches and between phases of care. The same label may also describe different methods. A clear recommendation should find the actual approach and explain how it relates to your concern, instead of relying on the broad word integrative.
You can ask about established supportive services within your cancer team as well. A private service should not imply that useful symptom support exists only outside conventional care. Talk about the available routes and if they can meet the need without creating conflicting advice.
If evidence is limited, that should be made clear before you decide. The talk should include the practical burden and possible harms, as well as any possible benefit. Uncertainty is not a reason to make a stronger promise. It is part of the decision you are being asked to make.
Why do supplements, herbs and restrictive diets need review?
Extra products need a safety check with your cancer team. Some can affect cancer treatment. NCCIH advises people with cancer to talk with their team before adding a product or practice. The word natural does not make a product safe for you. Its ingredients and your current care matter. Bring the full label so that the team ca review the actual product, not just its name. [1]
Bring the full labels of anything you take or plan to start, including vitamins, herbs, powders, teas sold for a health purpose and products recommended by another practitioner. Product names alone may not show the ingredients. Include the amount you use and how often you use it.
Ask who will assess the product against your actual treatment. A general statement that a supplement supports immunity does not answer that question. Nor does a testimonial show that it is safe for someone receiving a different cancer treatment.
Food advice should consider if you can eat enough and what your oncology team has advised. A restrictive cleanse or fasting plan should not be presented as a routine part of supportive cancer care. If eating, swallowing or weight is becoming difficult, tell the team rather than trying to solve it through an unreviewed programme.
If a planned plan contains several products, ask for the reason for each one and if it is necessary. You should be able to understand the goal, evidence, cost and review process. Choosing not to add a product is a valid option when the benefit is uncertain or the risks are unclear.
Who handles urgent symptoms and cancer-treatment decisions?
Use your cancer team's advice for urgent symptoms and treatment choices. Keep the contact number they gave you close at hand. If their plan says to call, do not wait for a routine support visit or an email reply. Ask the team to explain any part you do not understand. Extra care should support that safety plan and should not create a second, conflicting route. [2]
Keep the team's contact details accessible and ask what to do if you cannot reach them. If you are unsure which symptoms need urgent attention, ask for clarification before a problem occurs. A supportive visit should reinforce the existing safety plan rather than create a competing one.
Ask any extra practitioner to state the limits of their role. Who can advise on the planned supportive approach? Who can change a cancer medicine? Who will review a new symptom? These responsibilities should be clear enough that you do not have to make clinical judgements between providers.
If advice conflicts, pause the planned addition and ask the right doctors to make clear it. Do not stop or delay oncology treatment to try an alternative approach. The possible consequences of delay should not be obscured by reassuring language about a natural or personalised plan. [1]
Also tell the oncology team about changes that seem unrelated to cancer. They can judge if a symptom, product or planned procedure matters in the context of your treatment. An extra practitioner may not have the complete picture unless details are shared appropriately.
What should be agreed before a supportive consultation?
Before booking, tell the practice what you want help with. Say whether you are having cancer treatment now and which team is looking after you. Ask what the visit can cover and who you would see. Do not assume that it includes specialist cancer treatment or a named therapy. It is reasonable to check the scope first, then decide whether an extra visit is useful.
Make clear the person you see, visit fee and any extra costs for tests, products or follow-up. Laboratory tests and supplements are charged separately from practice visits. Ask what details are needed before a visit and how they should be supplied securely.
If communication with your cancer team is planned, ask how consent and details sharing will work. Make sure you know who will send any report and who will act on a result. A promise of coordination needs a practical arrangement behind it, especially when care is time-sensitive.
The Functional Medicine Doctor in London page gives the broader visit context. Use the enquiry to show suitability for your specific need, not as a commitment to start a programme. It is reasonable for the outcome to be advice to seek a more suitable service or to wait until the cancer team has reviewed the proposal.
Before agreeing to ongoing support, decide how its value will be assessed. A clear goal might concern a specific symptom or daily activity, with review by the suitable doctor. It should not be framed as a promise of longer survival, less recurrence or a better response to cancer treatment.
Your priorities belong in the conversation
Bring the question that matters to you, the care you already receive and any practical limits a new plan needs to respect.
Read patient reviews on Google. Reviews describe individual experiences; they do not establish treatment effectiveness or predict your outcome.

Common questions
Can functional medicine treat cancer?
This service details concerns supportive care alongside oncology. It does not show that functional medicine treats a tumour, prevents recurrence or improves survival. Do not replace or delay cancer treatment with an unproven approach. Talk about any extra product or practice with the team in charge of your cancer care. [1]
Is evidence for anxiety support evidence of an anticancer effect?
No. A study of anxiety or depression addresses those outcomes in the people studied. It does not show an effect on tumour control or survival. The SIO-ASCO guideline cited here concerns defined supportive needs and should not be used to validate a whole package of cancer-treatment claims. [4]
Should I tell my oncologist about vitamins and herbs?
Yes. Tell the oncology team about all products you use or plan to start, including vitamins, herbs and other supplements. Bring the ingredient details and how you take them. Some complementary products can interfere with treatment, so a general claim of natural safety is not enough. [1]
What if I become unwell during cancer treatment?
Follow the urgent contact instructions supplied by your oncology team and use their emergency number when advised. Do not wait for a routine supportive visit or email reply. For a life-threatening emergency, call 999. If the instructions are unclear, ask the team to explain them before you need them. [2] [3]
Does recovery mean I no longer need oncology follow-up?
No. Finishing a phase of treatment does not by itself end follow-up. Keep the plan agreed with your cancer team and talk about ongoing or new concerns with them. Extra support should fit around that care, with clear responsibility for symptoms, investigations and any changes in your treatment or monitoring.
Is a free discovery call included?
Do not assume that an introductory call or any other visit is included. Ask the practice to confirm the current booking options, practitioner, scope and fee for your case. Also make clear any separate costs for tests, products or follow-up before deciding about extra supportive care.
Choose your next step
Contact the practice to clarify the appropriate appointment and its cost.
Sources and further reading
- NCCIH: Cancer and complementary health approaches. Accessed 2 October 2026.
- NHS: Chemotherapy. Accessed 2 October 2026.
- NHS: When to call 999. Accessed 2 October 2026.
- Integrative Oncology Care of Symptoms of Anxiety and Depression in Adults With Cancer: Society for Integrative Oncology–ASCO Guideline. L. Carlson et al. (2023). Journal of Clinical Oncology. DOI: 10.1200/jco.23.00857. Accessed 2 October 2026.