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What should I eat after Cancer Diagnosis?

is a very common question asked.​
Choose food and supplements personalized to your cancer, genes, ongoing treatments and lifestyle.

is a very common question asked. Choose food and supplements personalized to your cancer, genes, ongoing treatments and lifestyle.

Personalized cancer Nutrition Planning for only .

Personalized cancer Nutrition Planning for only​ .

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For Which Cancer Types Should I Avoid Caffeine Supplement?

May 18, 2021

Estimated reading time: 8 minutes
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Highlights

Nutritional supplements like Caffeine have many health benefits and are being widely used by cancer patients and those at-genetic-risk of cancer. But, is it safe to take Caffeine supplements for all types of cancer and without considering any ongoing treatments and other lifestyle conditions? A common belief but only a myth is that anything natural can only benefit me or do no harm. As one example, the use of grapefruit with certain medications is not recommended. Another example, the use of spinach with some blood thinning medications can cause adverse interactions and should be avoided. For cancer, nutrition which includes the food and natural supplements has been shown to influence outcomes. Hence a frequently asked question by cancer patients to dieticians and doctors is “What Should I eat and What Should I Avoid?”.

Taking nutritional Caffeine supplements can benefit Rhabdomyosarcoma cancer patients on Radiation treatment. But avoid Caffeine supplements if on Ruxolitinib treatment for Myeloproliferative Neoplasms. Similarly, taking nutritional supplement Caffeine can benefit healthy individuals who are at genetic risk of cancer due to mutation of the gene CDKN1B. But avoid taking nutritional supplement Caffeine when at genetic risk of cancer due to mutation of gene PALB2.

The takeaway being – your individual context will influence your decision if nutritional supplement Caffeine is safe or not. And also that this decision needs to be constantly revisited as conditions change. Conditions like cancer type, current ongoing treatments and supplements, age, gender, weight, height, lifestyle and any genetic mutations identified matter. So a legitimate question for you to ask for any recommendation of food and natural supplement is how it is related to your individual context.



Brief Overview

Nutritional supplements – vitamins, herbs, minerals, probiotics, and other specialty categories are increasing. Supplements  are high concentrations of active ingredients which are also found in different foods. Difference being foods contain more than one active ingredient at lower diffused concentrations. Remember that each of these ingredients has its own science and biological mechanism at molecular level – hence choose  the right combination of supplements like Caffeine based on individual context and conditions.

Caffeine Supplements for Cancer Treatment and genetic Risk

So the question is should you take the supplement Caffeine? Should you take it when at genetic risk of cancer for mutation of gene PALB2? Should you take it when at genetic risk of cancer for mutation of gene CDKN1B? Should you take it when diagnosed with Myeloproliferative Neoplasms? Should you take Caffeine supplement when diagnosed with Rhabdomyosarcoma? Should you take it when on Ruxolitinib treatment? Should you continue taking it if you change your treatment from Ruxolitinib to Radiation? So a general explanation like – it is natural or it increases immunity may not be acceptable and sufficient for choosing Caffeine. 

Cancer 

Cancer remains an unsolved problem statement. The improved availability of personalized treatments and monitoring of cancer via blood and saliva have been significant factors to improve outcomes. The earlier the intervention – the better the influence on outcome. Genetic testing has the potential to assess cancer risk and susceptibility early. But besides regular monitoring in most cases there are no therapeutic intervention options available. After diagnosis with cancer such as Myeloproliferative Neoplasms or Rhabdomyosarcoma, the treatments get personalized to tumor genomics and factors like staging of disease, age and gender. During cancer remission (after treatment cycle is complete) – monitoring is used for assessment of any relapse and accordingly decide next steps. A large majority of cancer patients and those at-risk do take nutritional supplements like Caffeine. 

So the question is that are all genetic mutation risks and types of cancers to be considered as one when deciding the use of Caffeine? Are the biochemical pathway implications of genetic risk for cancer due to mutation of gene PALB2 the same as due to mutation of gene CDKN1B? Are the implications of Myeloproliferative Neoplasms the same as Rhabdomyosarcoma?  

Caffeine – A Nutritional Supplement

Caffeine is a plant based chemical and a natural stimulant. It stimulates the brain and central nervous system making us feel more alert and can also boost energy. It can also act as a diuretic. However, excess use of caffeine can also lead to the following side-effects:

  • Insomnia
  • Dehydration
  • Rapid or abnormal heart rhythm
  • Anxiety
  • Headaches
  • Addiction

Caffeine is an active ingredient found in various food items. Foods/Drinks like Coffee, Green Tea and Cocoa contain Caffeine at different concentration levels along with other active ingredients. The molecular pathways which are regulated by Caffeine include DNA Repair, PI3K-AKT-MTOR Signaling, Inflammation, Epithelial to Mesenchymal Transition and Endoplasmic Reticulum Stress. These cellular pathways directly or indirectly regulate specific cancer molecular endpoints like growth, spread and death. Because of this biological regulation – for cancer nutrition, the right choice of supplements like Caffeine individually or in combination is an important decision to be made. When making decisions on the use of supplement Caffeine for cancer – do consider all these factors and explanations. Because just as true for cancer treatments – Caffeine use cannot be a one-size-fits-all decision for all types of cancers.

Choosing Caffeine Supplements for Your Cancer 

The reason there is no easy way to answer the question “When should I avoid Caffeine for Cancer” is because “It Depends!”. Just like the same treatment does not work for every cancer patient, based on your individual context the Caffeine may be harmful or safe. Along with which cancer and associated genetics – the ongoing treatments, supplements, lifestyle habits, BMI and allergies are all factors deciding if Caffeine should be avoided or not and why. 

1. Will Caffeine Supplements benefit Cancer Patients with Myeloproliferative Neoplasms undergoing Ruxolitinib treatment?

Myeloproliferative Neoplasms is characterized and driven by specific genetic mutations like JAK2 and CALR leading to biochemical pathway changes in DNA Repair, JAK-STAT Signaling, Cytokine Signaling and Hematopoiesis. A cancer treatment like Ruxolitinib works through a specific pathway mechanism of action. The goal is to have a good overlap between the treatment and cancer driving pathways for a personalized approach which is effective. In such a condition any food or nutritional supplement which has a contrary effect to the treatment or reduces the overlap should be avoided. As an example, Caffeine should be avoided for Myeloproliferative Neoplasms along with treatment Ruxolitinib. Caffeine impacts pathways DNA Repair which either promote drivers of the disease and/or nullify the treatment effect. Additionally, Caffeine can have CYP3A4 interactions with Ruxolitinib treatment and should be avoided by cancer patients undergoing this treatment. (Kenichi Umehara et al, Drug Metab Pers Ther., 2019) Some of the factors which should be considered when choosing nutrition are type of cancer, treatments and supplements being taken currently (if any), age, gender, BMI, lifestyle and any genetic mutation information (if available).

2. Will Caffeine Supplements benefit Rhabdomyosarcoma Cancer Patients undergoing Radiation Treatment?

Rhabdomyosarcoma is characterized and driven by specific genetic mutations like NRAS and FGFR4 leading to biochemical pathway changes in PI3K-AKT-MTOR Signaling, Epithelial to Mesenchymal Transition, Angiogenesis, RAS-RAF Signaling and MAPK Signaling. A cancer treatment like Radiation works through specific pathway mechanisms. The goal is to have a good overlap between the treatment and cancer driving pathways for a personalized approach. In such a condition any food or nutritional supplement which has a compatible effect to the treatment or reduces the overlap should be considered. As an example, Caffeine supplements should be considered for Rhabdomyosarcoma along with treatment Radiation. Caffeine supplements impacts pathways PI3K-AKT-MTOR Signaling and Epithelial to Mesenchymal Transition which either obstruct drivers of the disease (Rhabdomyosarcoma) and/or improve the treatment effect.

For Which Cancer to Avoid taking Supplement Caffeine

Foods to Eat After Cancer Diagnosis!

No two cancers are the same. Go beyond the common nutrition guidelines for everyone and make personalized decisions about food and supplements with confidence.

 3. Are Caffeine Supplements Safe for Healthy Individuals with PALB2 Mutation Associated Genetic Risk?

Different companies offer panels of genes to be tested for assessing genetic risk to different cancers. These panels cover genes associated with cancers of the breast, ovary, uterus, prostate, and gastrointestinal system and others. Genetic testing of these genes may confirm a diagnosis and help guide treatment and management decisions. Identification of a disease-causing variant may also guide testing and diagnosis of at-risk relatives. PALB2 is one of the genes generally available in panels for cancer risk testing.

PALB2 mutation causes biochemical pathways DNA Repair, Endoplasmic Reticulum Stress, Stem Cell Signaling, Angiogenesis and Growth Factor Signaling to get impacted. These pathways are direct or indirect drivers of cancer molecular endpoints. Caffeine should be avoided when the genetic panel identifies mutation of PALB2 for Breast Cancer and Kidney Cancer. Caffeine impacts pathways DNA Repair and Endoplasmic Reticulum Stress and creates adverse effects with PALB2 and related conditions.

4. Are Caffeine Supplements Safe for Healthy Individuals with CDKN1B Mutation Associated Genetic Risk?

CDKN1B is one of the genes available in panels for cancer risk testing. CDKN1B mutation causes biochemical pathways PI3K-AKT-MTOR Signaling, Angiogenesis, FOXO Signaling, Stem Cell Signaling and Growth Factor Signaling to get impacted. These pathways are direct or indirect drivers of cancer molecular endpoints. Consider taking Caffeine supplements when the genetic panel identifies the mutation in CDKN1B for Neuroendocrine Cancer. Caffeine impacts pathways PI3K-AKT-MTOR Signaling and Angiogenesis and creates a supportive effect in those with CDKN1B and related conditions.

Which Cancer Types to Avoid Caffeine Supplement

* Other Factors are also included like BMI, Lifestyle Habits, Treatments

In Conclusion

The two most important things to remember are that cancer treatments and nutrition are never the same for everyone. Nutrition which includes food and nutritional supplements like Caffeine, is an effective tool which can be controlled by you, while facing cancer.

What food you eat and which supplements you take is a decision you make. Your decision should include consideration of the cancer gene mutations, which cancer, ongoing treatments and supplements, any allergies, lifestyle information, weight, height and habits.

The nutrition planning for cancer from addon is not based on internet searches. It automates the decision making for you based on molecular science implemented by our scientists and software engineers. Irrespective of whether you care to understand the underlying biochemical molecular pathways or not - for nutrition planning for cancer that understanding is needed.

Get started NOW with your nutrition planning by answering questions on the name of cancer, genetic mutations, ongoing treatments and supplements, any allergies, habits, lifestyle, age group and gender.

Foods to Eat After Cancer Diagnosis!

No two cancers are the same. Go beyond the common nutrition guidelines for everyone and make personalized decisions about food and supplements with confidence.


Cancer patients often have to deal with different chemotherapy side effects which affect their quality of life and look out for alternative therapies for cancer. Taking the right nutrition and supplements based on scientific considerations (avoiding guesswork and random selection) is the best natural remedy for cancer and treatment related side-effects.


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