Cancer Support Diet (Plant-Based)
This plant-based, immune-supportive diet is designed to help you manage the nutrition-related side effects that can arise during cancer treatment. It features simple meals and snacks to boost calorie and protein intake, helping your body rebuild tissue and supporting your energy and strength. Because treatment can affect digestion and create new sensitivities, this plan is entirely plant-based (vegan) and free from common triggers like dairy, eggs, corn, and added sugars. Your body's response to different foods and its baseline inflammatory processes are influenced by your unique genetic makeup. Your PlexusDx report provides insights into genes like TNF, IL6, and CRP, which are involved in the body's immune and inflammatory pathways, as well as genes like CYP1A2 and FUT2 that can offer clues about metabolism and digestive health.
The science behind this plan focuses on using nutrient-dense, plant-based foods to protect the body, support the immune system, and manage common treatment side effects like nausea and low appetite. Key recommendations include:
- Antioxidant-Rich Foods: Load up on colorful fruits and vegetables like grapes, leafy greens, and blackberries, along with nuts and seeds to help protect your body from cellular damage.
- High-Fiber & Sugar-Free: Choose high-fiber foods such as whole grains, legumes, and vegetables to support stable energy and prevent constipation. This plan strictly avoids added sugars.
- Immune-Boosting Nutrients: Incorporate high-quality plant-based proteins like tofu, edamame, and quinoa, which provide the building blocks to help repair tissue and support a strong immune system.
- Soothe and Manage Side Effects: Eat small, frequent meals to help manage nausea. Opt for soft, moist foods like soups, smoothies, and well-cooked beans if you have mouth sores, and sip on ginger or mint tea to soothe digestion.
Ready to get started? The PlexusDx meal planning tool is your next step. To make the plan work for you, use the “Swap” feature to find recipes that fit your tastes and needs. It’s an easy way to customize your meals while staying within the diet’s guidelines.
- Locate the meal you wish to change.
- Click the three dots on the meal card.
- Select “Swap recipe” from the menu.
- Choose whether to “Swap” just this meal or “Swap all” instances of it in your plan.
- Keep clicking “Swap” to browse alternative recipes that match your diet rules, such as dairy-free or egg-free.
PlexusDx provides educational information about genetic predispositions only. This content is not medical advice. Always discuss genetic findings, test results, symptoms, and treatment decisions with your healthcare provider or an allergist to determine appropriate care for your situation.

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Cancer Support Diet
Cancer Support Diet