Health & Wellness buying guide

How to choose a diet plan

A diet plan should fit your health, food preferences and routine in a way you can keep up. Be cautious of plans that promise fast or guaranteed results, cut out whole food groups without reason, or sell supplements as the core of the programme. If you have a health condition, talk to a qualified professional first.

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Weighted criteria

What matters when choosing diet plans

Weights add up to 100 and reflect how much each factor usually decides satisfaction. Change them to fit you in the scorecard.

  1. Evidence & balance

    25%

    Whether the plan follows general healthy-eating guidance: plenty of vegetables, fruit, whole grains and pulses, and limited salt, sugar and saturated fat.

    How to check: Compare the plan with public healthy-diet guidance such as the WHO fact sheet or your national dietary guidelines.

  2. Sustainability

    20%

    Whether you can follow it long term with your budget, culture, schedule and cooking skills.

    How to check: Read a sample week of meals and ask yourself honestly if you could eat this way for months.

  3. Qualified support

    20%

    Whether a registered dietitian or other qualified professional designs or supports the plan.

    How to check: Ask for the credentials of the people behind it and check them with the relevant professional register.

  4. Honest claims

    15%

    Realistic language with no guaranteed results or miracle ingredients.

    How to check: Treat specific promised outcomes, before-and-after photos and "clinically proven" with no study details as warning signs.

  5. Total cost & cancellation

    10%

    Subscription, app, food and any supplements, plus how easily you can cancel.

    How to check: Add up the full monthly cost and read cancellation terms.

  6. Data & privacy

    10%

    How the app or programme uses your health and body data.

    How to check: Read the privacy policy and check whether data is shared with advertisers.

Avoid

Red flags

  • Promises of rapid or guaranteed weight loss.
  • Plans built around buying the seller's supplements, teas or shakes.
  • Cutting out whole food groups with no medical reason.
  • "Detox" or "cleanse" claims.
  • Advice to stop prescribed medication.
  • Testimonials used in place of evidence.

Before you pay

Checklist

  1. Talk to a doctor or dietitian first if you have a health condition, are pregnant or take medication.
  2. Compare the plan with official healthy-diet guidance.
  3. Check the qualifications of the people behind it.
  4. Work out the full monthly cost.
  5. Read the cancellation and privacy terms.

Ask the seller

Questions to ask

  • Who designed this plan, and what are their qualifications?
  • What evidence supports this approach?
  • Are supplements required, and why?
  • How do I cancel?

After you buy

Warranty & returns

Diet programmes have no warranty. "Money-back guarantees" usually come with strict conditions.

  • Read guarantee conditions before paying.
  • Report misleading health claims to your consumer protection or advertising regulator.

Track the return window and warranty end date

Common mistakes

Myths vs facts

Myth Carbs are always bad.

Fact Whole grains and other fibre-rich carbohydrates are part of healthy-eating guidance.

Myth Detox diets clean your body.

Fact Your liver and kidneys already do that. Detox products are not needed for this.

Myth The faster the result, the better the plan.

Fact Very rapid changes are hard to sustain. Habits you can keep matter more.

Where this comes from

Official sources

Criteria and weights are AltFTool's editorial judgement, not a statement by these bodies. This guide is general consumer information, not professional advice.

FAQ

Diet Plans: common questions

Do I need a diet plan at all?

Not necessarily. Many people do well by following general healthy-eating guidance. A plan can add structure, but it is not required.

Are diet apps reliable?

They can help you track food, but quality varies. Check who designed the content and how your data is used.

What about intermittent fasting or keto?

These approaches suit some people and not others, and they may be unsafe with some conditions or medications. Discuss them with a health professional.

Free tools

Use these with this guide

Weighted scorecard

Review pattern checker

Complaint letter writer

Warranty & returns tracker

True cost calculator

Also handy: calorie calculator, bmi calculator

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