Integrative & Functional Nutrition Specialists

Christina (and the whole team) at Sea + Spruce are amazing!! They are dedicated, professional, and true experts in the field of functional nutrition. Through working with Christina and doing a number of tests, we have come up with a plan that I am very excited about! And during the process of working with Christina and further developing my plan, we implemented some supplements and changed some dietary components which has led to the best bloodwork I have seen in years, as well as weighing what I weighed back in highs school (I am 43 now)!! Christina and the Sea+Spruce team are BEYOND passionate at what they do and how they help, and the proof is in the (sugar free) pudding!!

Christina and Andrea's expertise has truly changed my life. I came to them in a desperate place after years of deep fatigue that became so bad it impacted my ability to have the energy to cook dinner or to be present with my loved ones. In just a short amount of time they identified the problem (which UCSD's team of doctors were unable to do after many appointments) and put me on an actionable plan toward healing. This is the lightest and most energized my body has felt in years and I cannot thank them enough. I also am very research oriented and have read published articles to try and fix the issue myself with supplement interventions but ultimately I learned that without the degree and years of experience supporting people daily I was way in over my head. If I could go back in time and change things I would have started here instead of spending all the time and money reading research, seeing other doctors, and buying supplements to self treat. Another thing I appreciate is Christina and Andrea still respect that there is a time and place for pharmaceutical interventions when necessary. This has made me trust that they will honestly point me in the direction of the right healing support instead of insisting only supplements are valid forms of care. I have never felt pressured to do anything that I didn't feel comfortable with and the relationship is very collaborative.

Working with Andrea and Christina absolutely changed my life! For years I struggled with a myriad of symptoms and not only did they help me get those symptoms under control, they provided me with a wealth of knowledge to assist in my gut health journey moving forward. Absolutely recommend to anyone seeking answers and comprehensive, caring providers!

Thanks to sea and spruce nutrition. great to work with and helped so much from an overall health perspective. would 100% recommend to anyone who is stuck or confused, or needs help and support with their health! Thank you!!

cannot say enough good things about Sea & Spruce Nutrition. I had been struggling with my hormones and energy levels for a long time and just knew something was off, but I couldn’t figure out what. They were incredibly thorough, attentive, and beyond helpful through the entire process. What really stood out to me was that they didn’t just hand me information and send me on my way. They took the time to explain everything clearly, wrote everything out in a way that was easy to understand, and consistently followed up to see how I was doing and answer questions. I truly felt supported the entire time. It’s rare to find people who genuinely care and make you feel heard, but that’s exactly how my experience was. I finally feel like I’m getting answers and moving in the right direction with my health and energy. I’m so grateful for all of their help and highly recommend them to anyone trying to get to the root of what’s going on with their body.

Working with Christina and Andrea has truly been such a positive experience. Through this process, I’ve gained a much better understanding of my body, how it functions, and how to heal from the inside out. I feel like I now have a healthier relationship with both myself and my body as a result. The information they provide is easy to access, understand, and apply, and there are always plenty of opportunities to ask questions and receive support. I felt genuinely heard, supported, and cared for throughout the entire process. I would highly recommend working with Christina and Andrea to anyone looking for a more personalized and supportive approach to health and nutrition.

Hello to anyone who may come across this review! I have been working with Christina & Andrea since around Nov of 2025. In just 6 months I have experienced MASSIVE improvements in my overall gut health and nutritional journey. I first came to them with extensive histamine/gut issues. I had never experienced histamine issues in my life and prior to meeting with Sea + Spruce Nutrition, I met with both my PCP and Immunologist. The Immunologist told me "expect to get hives every single time you eat", gave me bloodwork to do and sent me on my way. My PCP did additional bloodwork, told me to focus on water intake and low stress and also sent me on my way. I tried to advocate for a gut specialist referral but didn't have "enough evidence" for them to approve me. I felt defeated. Not only was I experiencing hives (welts) and itchiness from head to toe, I experienced brain fog, lethargy, flushing, nausea, anxiety (due to the histamine overload), elevated heart rate, bloating, and everything I ate even fruits/veggies would trigger the histamine release. I couldn't work, do basic tasks, and was struggling. Had I not signed up with Christina & Andrea I would still be lost in a treatment plan. The communication, labs, supplements, and profound KNOWLEDGE that both of them have is seriously amazing. They have changed my life for the better. I am SO grateful to them, with their guidance and my consistency I have had a decrease of symptoms by 98%. With the other 2% being my body relearning how to reintroduce foods and catch up again. There is literally so much more that I can say but I 1000% recommend them to anyone. Is it a financial commitment? Yes! But I would much rather pay this amount now to strengthen my overall health and learn from both Christina & Andrea and to get back to living my life again than for my body to stay in a state that was extremely unhealthy and struggling while meeting with doctors who don't have the capacity to get to the root cause. My health is better than it has ever been in my life. Their attention to client care has made me feel so validated in my experience and genuinely cared for. I never once felt rushed or pressured during our time together, instead they have been accommodating, flexible, and understanding. P.S. I now tell everyone that they need a dietitian and nutritionist on their medical team. Truly life changing. Thank you Christina & Andrea!!

I have been working with Cristina and Andrea for close to 10 months now, and I have made great progress in identifying issues, and restoring my gut health (and in turn my overall health). It’s been a mystery to solve with many contributing factors, but over time they have helped peel back the layers, and I’m excited to for future progress. I’ve been provided with lots of resources and tools along the way, and they are always there to support when issues arise.

I worked with Christina and Andrea over the last year and was impressed by how much we could uncover in that time. I focused on my struggles with cravings and constant hunger, which I had always thought it was a byproduct of intensive aerobic activity. Working with the team at Sea and Spruce I was able to go through a rebuilding process to tackle those issues and I feel overall that I understand my health and baseline much better.

Christina and Andrea are easy to talk to and offer abundant advice that really works. Much of it is common sense and practical and they provide everything you discuss with them online in an easy to use format. I am not a very computer savvy person but I did not have to be to communicate with them and access all their helpful advice. The stomach and digestion issues I had before I contacted them have been very much resolved and I feel so much better. I am 71 and thought that my problems were just a result of getting old, but they were not because with a few adjustments of habits here and there, the problems either went away or were very much decreased.

My consultation with Christina was outstanding. She had good ideas that several GI docs never mentioned. She is clearly passionate about her work and is very knowledgeable as well. Highly recommended.

Sea + Spruce is exactly what I was looking for when searching for a functional nutrition practice. I love the approach Christina and Andrea employ in tackling immune function imbalance. They use a systematic protocol that targets the causes, not the symptoms. Their expertise is not only in nutrition and testing analysis, but also in their methods: a wholistic approach in identification, restoration, and optimizing gut function and immune response.

I’ve been working with Sea + Spruce Nutrition on nutrition testing and supplement optimization. Christina is very hands-on and made the task of getting tested, analyzing results, and designing a plan feel easy and collaborative. She handled the logistics and guided the process, while still keeping me involved and aligned on the decisions. She translated complex lab data into a clear, tailored nutrition and supplement plan without making it feel overwhelming. I really like how grounded and evidence-based her approach feels. It’s thoughtful, measured, and centered on real clinical data, which made me feel confident in the plan.

I worked with Christina and Andrea recently and received real insight into my health and the supportive encouragement to make important changes that have improved my well-being. I highly recommend Christina and Andrea at Sea + Spruce!

I’ve been working with Christina and Andrea for over a year and a half now and couldn’t recommend them more highly! They offer practical, thoughtful care and truly help you understand the underpinnings of your health—the why behind every protocol and test. They provide timely, insightful information that empowers you to make the best decisions for your own health. They are compassionate through all the ups and downs and genuinely want to see you reach your goals. The healing journey can take time, but I’m so glad they are a part of my care team. I don’t think I ever would have uncovered that I had SIBO without them, nor would I feel so equipped to advocate for myself in other medical settings. If you’re struggling with gut health (and all the challenging symptoms that come with it) and want true support, I highly recommend them!

Christina and Andrea were amazing to work with. Their guidance and support was structured in way that was incredibly easy to manage & track from the Practice Better app. Everything from session notes to test results are available at your fingertips. It’s a great collaborative experience

I had such a lovely experience with Sea & Spruce Nutrition! I worked directly with Christina, and she really helped me regulate my system, get my digestion on track, support my autoimmune disease, and figure out protocols that made sense for my lifestyle, diet, allergies/intolerances, and needs. I feel great after working with Sea & Spruce and hope to continue!

I reached out to Sea and Spruce and couldn’t be happier. My concerns were related to my food and smell triggers for my migraines. After discussing the options we collectively came up with the best plan and testing for me. The testing was very simple and came directly to my house. The team was with me every step of the way from explaining my test results, supplements and dietary recommendations, and stress/ sleep recommendations. Everything they gave was super realistic and attainable. I can’t thank them enough for their professionalism and all around care for my health. Highly recommend.

I can't recommend Christina and team enough. As someone who's been trying to recover from Long Covid for almost 2 years, they've been an invaluable part of my recovery process. Most importantly, they've been able to isolate a number of issues with my microbiome from SIBO to bacterial issues and by working to resolve those it's meant a huge reduction in my symptoms. If you're struggling with your health, in particular if you're dealing with chronic illness, start with your stomach and with Sea and Spruce. You won't find a more knowledgeable, professional, kind and conscientious team to assist you.

Christina was amazing to work with. She was always patient, knowledgeable, and supportive of my goals