Foundations hub

Keto Foundations

Foundational ketogenic diet guides: clear introductions, context, and practical next steps for everyday keto.

All foundations

Start with the core keto introductions, then move into food guides, recipes, and news.

Glass water bottle, electrolyte tablets, leafy greens, and lemon on a bright kitchen table

Keto Flu: Why It Happens and How to Prevent It

Keto flu hits most beginners in the first week. Here is why it happens, which symptoms to expect, and what actually works to prevent or shorten it.

Keto starter foods arranged on a kitchen table with avocado, salmon, eggs, greens, and a beginner food checklist

Foundations

Keto for Beginners

Learn how to start keto with simple food rules, beginner macros, common mistakes, and a practical first-week structure.

Keto foods for beginners with eggs, avocado, green vegetables, fish, and olive oil

Foundations

Essential Keto Foods for Beginners

Essential keto foods for beginners: a simple first-week shopping list, food groups, portion traps, and calm practical tips for getting started.

Doctor consultation desk with stethoscope, blood pressure cuff, abstract tablet graphics and low-carb meal planning items

Foundations

Who Should Not Do Keto: Contraindications and Drug Interactions

A comprehensive 2026 review in Annals of Medicine identifies who should avoid the keto diet and which medications interact with it. Here is what the research shows.

Various teas in glass bowls on a wooden table: green tea, black tea, herbal tea, and matcha

Foundations

Tea on Keto: The Complete Overview of Allowed and Forbidden Varieties

Complete overview: which teas are keto-friendly, which can knock you out of ketosis, and what to look for when buying tea on a ketogenic diet.