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Tom’s Weight LossRankings

Guides

Understand the category

Background reading with no products in it. If you only read one thing on this site before spending money, make it the red flags guide.

Consumer protection

Eleven red flags we see in weight loss marketing

The specific claims, structures and design patterns that reliably predict a product is not worth your money — and why each one works on people.

9 min read · updated

Prescription

How GLP-1 medications work, in plain language

What this class of drugs actually does in the body, what the trial evidence supports, what the side effects are, and the question about stopping that most services avoid.

11 min read · updated

Supplements

How to read a supplement label without being fooled

Serving sizes, proprietary blends, third-party certification marks, and the regulatory gap that explains why so much of this shelf is ineffective.

8 min read · updated

Fundamentals

The calorie deficit, and why every product is really selling adherence

The one mechanism underneath every product on this site, why that framing is less useful than it sounds, and what actually differentiates approaches that work.

7 min read · updated

Consumer protection

How to cancel a weight loss subscription that does not want to let you go

A practical sequence for getting out of a recurring charge, what your rights actually are, and how to escalate when the cancel button is hiding.

6 min read · updated

Fundamentals

What to ask a doctor before starting any weight loss treatment

A printable list of questions worth taking to an appointment, and the reason each one is on it.

5 min read · updated

Prescription

Semaglutide vs tirzepatide: what the head-to-head trial actually found

Two drugs, two mechanisms, and one direct comparison trial. What the evidence shows about weight loss, side effects, and why the bigger number isn't automatically the right choice for you.

10 min read · updated

Prescription

Brand-name vs compounded GLP-1s: the distinction that matters most

Compounded semaglutide is not a generic. It is a different regulatory category with different guarantees — and the rules changed substantially in 2025. Here is what the difference actually means.

11 min read · updated

Prescription

What GLP-1 treatment actually costs: every fee, itemised

Membership fees, medication cost, labs, dose escalation and the introductory pricing that expires. How to work out your real twelve-month number before you commit.

9 min read · updated

Prescription

Who is actually eligible for GLP-1 weight loss medication

The BMI thresholds on the label, the contraindications that rule people out entirely, and the histories that warrant a longer conversation than an online intake form will give you.

8 min read · updated

Prescription

GLP-1 side effects: what's common, what's serious, and what to do

The gastrointestinal effects almost everyone gets, the rare complications worth knowing the warning signs for, and the practical things that make titration more bearable.

10 min read · updated

Prescription

Storing and shipping GLP-1 medication without ruining it

Refrigeration requirements, how long these drugs tolerate room temperature, what to do when a cold-chain package arrives warm, and how to travel with an injectable.

7 min read · updated

Prescription

Insurance, HSA and FSA for GLP-1 medication

Why coverage is so inconsistent, how prior authorisation and step therapy work, what to do when you're denied, and which of these costs you can pay with pre-tax dollars.

9 min read · updated