The Effects of Herbs and Spices on Body Weight – A Systematic Review

Order Description
Hey there..

I need a “SYSTEMATIC LITERATURE REVIEW” not a regular literature review. My regular literature review is another chapter that I will send a request for later.

This systematic literature review will be on 4 herbs and how they affect body weight. The four herbs are black pepper, red chilli, turmeric, and ginger.

I will attach a similar systematic review that you should follow. The other systematic review talks about different 4 herbs and how affect blood pressure. It’s so similar to our work so all it will
give you an idea about what I need.

I want you to send the work on stages to make sure you’re following the instructions

Key words: Body fat OR adipose tissue OR Bodyweight OR Body weight AND herb* or spice*or black pepper or Piper nigrum or turmeric or Curcuma longa or chili or chilli or red pepper or capsicum or
ginger or Zingiber officinale

Databases: You should use at least 4 databases. Pubmed is a must and you can choose any other common databases such as Ovid medline, embase or biological abstracts.
Criteria: Similar to what the other review did did. At the end we look in this study for controlled trials as possible.

Stage 1: Review Protocol & Scope Definition (Proposed)

This stage ensures methodological alignment before any literature synthesis begins.

1. Review Objective

To systematically evaluate evidence from controlled human studies on the effects of four specific herbs/spices on body weight–related outcomes:

• Black pepper (Piper nigrum)

• Red chilli / chili / capsicum (Capsicum spp.)

• Turmeric (Curcuma longa)

• Ginger (Zingiber officinale)

2. Review Question (PICOS Framework)

• Population (P): Adults (≥18 years), healthy or overweight/obese

• Intervention (I): Supplementation or dietary intake of the specified herbs/spices

• Comparator (C): Placebo, no intervention, or control diet

• Outcomes (O):

  • Body weight

  • Body fat

  • Adipose tissue

  • BMI or related anthropometric measures

• Study design (S):

  • Randomized controlled trials

  • Controlled clinical trials
    (Observational studies to be excluded at final selection, consistent with your instruction)

3. Databases (Minimum of 4)

Mandatory and proposed databases:

• PubMed (mandatory)

• Ovid MEDLINE

• Embase

• Biological Abstracts (or Web of Science if preferred)

Please confirm if you want CINAHL or Scopus included as additional databases.

4. Search Strategy (Draft – To Be Replicated Across Databases)

Core Boolean structure (as requested):

• Medical Subject Headings (MeSH) will be applied where applicable (PubMed)

• Filters: Humans, Adults

• No initial date restriction unless you specify otherwise

5. Inclusion Criteria (Draft)

• Human studies

• Adults (≥18 years)

• Controlled trials (RCTs preferred)

• Intervention includes at least one of the four herbs

• Reports body weight–related outcomes

6. Exclusion Criteria (Draft)

• Animal or in vitro studies

• Observational studies (unless used briefly for context only)

• Multi-herbal formulations where individual effects cannot be isolated

• Non-English publications (unless you request inclusion)

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Stage 2 (Next – After Your Approval)

• Database-specific search execution

• PRISMA flow diagram (identification, screening, eligibility)

• Study selection table

Stage 3

• Data extraction tables (study characteristics, interventions, outcomes)

Stage 4

• Herb-by-herb synthesis (black pepper, chilli, turmeric, ginger)

• Risk of bias assessment

Stage 5

• Final systematic synthesis

• PRISMA checklist

• Reference list (APA format)

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