Drug & supplement interaction

Sonoma Diet + Colesevelam

Colesevelam brand names: WelChol, Lodalis.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Sonoma Diet and Colesevelam in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Sonoma Diet and Colesevelam

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Colesevelam and Sonoma Diet in our sources. This does not guarantee that the combination is completely free of risk — research on Sonoma Diet alongside specific medications may be limited.

Worth understanding: our licensed dataset holds no drug-interaction record for Sonoma Diet at all — not against Colesevelam, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

Sonoma Diet is an eating pattern rather than something you take. Ask your pharmacist or doctor before changing how you eat while on a prescribed medicine: some medicines are dosed around meals, and a change in diet can change how they work. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Sonoma Diet safety at a glance

Sonoma Diet overall Generally safe As a balanced whole-foods eating plan it is generally safe for most healthy adults.
Pregnancy Use caution Healthy eating is encouraged, but pregnant people have special nutrient needs and should consult their provider before following any structured diet.
Breastfeeding Use caution Nursing parents need extra calories and nutrients, so review any diet plan with a healthcare provider first.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Colesevelam and Sonoma Diet? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Colesevelam’s Own FDA Label Lists

This is not an interaction — none of it involves Sonoma Diet. These are the most notable effects listed in the ADVERSE REACTIONS section of Colesevelam’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you follow Sonoma Diet and take the medicine. 10 of them are worth acting on rather than waiting out — marked below.

  • A bowel blockage Worth acting on
  • Trouble swallowing Worth acting on
  • Low blood sugar Worth acting on
  • A slow heartbeat Worth acting on
  • A heart attack Worth acting on
  • Pancreatitis Worth acting on
  • High blood sugar Worth acting on
  • Seizures Worth acting on
  • Raised blood pressure Worth acting on
  • A higher chance of infection Worth acting on

Showing the 10 most notable of 24 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Colesevelam. Read the label on DailyMed › Where a percentage is shown, it is the share of 2,014 voluntary FDA FAERS reports for Colesevelam that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Sonoma Diet’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Sonoma Diet side to compare — that is a limit of the record, not a statement that Sonoma Diet has no side effects.

From our Q&A

Questions About Sonoma Diet or Colesevelam

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Sonoma Diet or Colesevelam, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Colesevelam

This page covers Sonoma Diet only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Colesevelam page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

From our pharmacist’s overview on the Colesevelam page

“Colesevelam (WelChol, Lodalis) lowers cholesterol by binding bile acids in your gut, and every one of the 17 supplements on this list can interfere with how oral medicines are absorbed in that same territory. I would treat this list with genuine care, and the place to start is activated charcoal, the only major-rated entry.”

Reviewed by 2 · Jul 18, 2026

Open the Colesevelam interaction page

How much people look this up

Where Sonoma Diet and Colesevelam Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Sonoma Diet
Steady interest

#1,256 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Colesevelam
Steady interest

#1,717 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions. Sonoma Diet is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Sonoma Diet reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Sonoma Diet and Colesevelam records this page draws on were last updated June 22, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Eating pattern

About Sonoma Diet

What is Sonoma Diet?

  • Weight loss
  • Heart health
  • Blood sugar control
  • Mediterranean-style eating
  • General healthy eating

The Sonoma Diet is not a supplement or herb — it is a Mediterranean-style eating plan that emphasizes whole grains, lean proteins, healthy fats, vegetables, and portion control. It is generally considered a safe, balanced way to eat, but it is a food plan rather than a pill, so talk with your doctor or dietitian before making big dietary changes.

Eating plan (whole foods, meal plans, recipes, books)

An interaction check asks whether these two react with each other — it does not ask whether Sonoma Diet is a good idea for someone in your situation. Here is what our Sonoma Diet record says about it on its own.

Sonoma Diet: dosing

There is no "dose" for the Sonoma Diet because it is an eating plan, not a supplement. Instead, you follow the plan's guidance on food choices, portion sizes, and meal structure, often described in its books or official materials.If you want to follow it, a registered dietitian can help you tailor it to your calorie needs, health conditions, and preferences.

From our Sonoma Diet monograph — the full record covers uses, side effects and every documented interaction.

Read the full Sonoma Diet monograph & all interactions
Medication

About Colesevelam

What Is Colesevelam Used For?

Brand names: WelChol, Lodalis

Colesevelam is used alongside diet and exercise to reduce high LDL cholesterol (the "bad" cholesterol) in adults with primary hyperlipidemia (high cholesterol). It is also approved to lower LDL cholesterol in boys and girls aged 10–17 who have heterozygous familial hypercholesterolemia (HeFH) — an inherited condition that causes very high cholesterol — when diet and lifestyle changes alone haven't worked.

Colesevelam tablets and oral suspension (Welchol and colesevelam hydrochloride products) are also used to improve blood sugar control in adults with type 2 diabetes, as an add-on to diet and exercise. Colesevelam is not for type 1 diabetes or diabetic ketoacidosis.

Most-Reported Side Effects for Colesevelam

From FAERS, the FDA’s public side-effect reporting system (2,014 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Diarrhea 241 reports
Dyspnea 172 reports
Cough 169 reports
Muscle spasms 163 reports
Nasopharyngitis 150 reports
See full Colesevelam drug information
Keep checking

Other Drugs & Sonoma Diet

Browse every other medication we’ve checked against Sonoma Diet — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Sonoma Diet against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Sonoma Diet list.

See the full Sonoma Diet interactions page
See every supplement checked against Colesevelam, ranked by severity
Evidence & sources

Sonoma Diet References

The 3 sources that drive our Sonoma Diet monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Sonoma Diet is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Mediterranean Diet — MedlinePlus Source
  2. Healthy Eating Plan — NIH NHLBI Source
  3. Mediterranean Diet — Cleveland Clinic Source

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Following Sonoma Diet While Taking Colesevelam: Common Questions

Is it safe to follow Sonoma Diet while taking Colesevelam?
We do not list a known interaction between Sonoma Diet and Colesevelam. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Does Colesevelam interact with any supplements?
Yes. Colesevelam has documented interactions with 17 supplements in our database — Sonoma Diet is not one of them. The Colesevelam interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Sonoma Diet monograph Uses, safety profile, and every drug interaction in one place Colesevelam drug information The full plain-English guide to this medication Colesevelam supplement interactions Every supplement checked against Colesevelam, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 3 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Colesevelam and Sonoma Diet?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.