GOLO diet guide

What the GOLO diet is

What is the GOLO diet?

At its core, GOLO is an eating plan paired with a pill. The plan emphasizes real foods: lean proteins like poultry, fish, eggs and tofu, high-fiber carbs including brown rice, oats, beans and fruit, plenty of vegetables and healthy fats from olive oil, nuts and avocado. The plan's own trial describes three meals with one serving from each of four groups: protein, vegetables, carbs and fats.

This post has long pointed to Verywell Fit and Health.com for food lists and for a range of about 1,300 to 1,800 calories a day. The trial is the firmer number: calorie goals were about 500 below each person's maintenance level. So it's a portion-controlled, reduced-calorie diet, whatever else it's called. That's worth keeping in mind, since cutting calories can produce weight loss with or without any supplement.

The philosophy centers on metabolic health and insulin. GOLO calls Release "the natural solution to insulin resistance" on its product page, and it includes the plan free with a first order. The whole-food principles are sound whether or not you buy the bottle.

GOLO Release supplement ingredients

What's inside GOLO Release?

• Minerals: magnesium (as dimagnesium malate), zinc bisglycinate and chromium nicotinate glycinate.
• Plant extracts: banaba leaf extract, berberine, salacia reticulata, gardenia jasminoides, apple polyphenols, rhodiola root and inositol.

That's the list this post has long carried. GOLO's product page confirms the count of 7 plant extracts and 3 minerals in a proprietary blend, but we couldn't match every name there, so check the label. GOLO's FAQ covers how its supplements are made and tested. The doses of individual ingredients matter, and we'd want to see them against the amounts used in research.

Several of these have been studied on their own for blood sugar and insulin sensitivity, particularly berberine and chromium. Here's how much weight loss that research shows:

• Berberine. A 2026 meta-analysis of 23 articles found about 0.88 kg (1.9 pounds) of weight loss over control, and it pointed to poor reporting of purity and potency, along with a lack of blinding and randomization. An earlier review of 12 trials found no significant change in body weight. It does appear to affect blood sugar: an umbrella review found effects on glycemic markers.
• Chromium. A Cochrane review of 9 trials of a different form, chromium picolinate, found about 1.1 kg (2.4 pounds) of weight loss at 12 to 16 weeks. Its authors called that of debatable clinical relevance, based on low-quality evidence.

Neither is nothing, but neither is the kind of effect the marketing suggests. The specific combination and doses in Release haven't been extensively studied outside of GOLO-funded research.

GOLO diet evidence & clinical studies

Does GOLO actually work?

The main trial, published in 2019, put 68 adults with obesity on the GOLO program, with either Release or a placebo for about 13 weeks. Those who finished lost 6.07 kg on Release and 3.38 kg on placebo (p = 0.047). That's a difference of 2.69 kg, or about 6 pounds. It's also where GOLO's "nearly 79% more weight" line comes from, since 6.07 divided by 3.38 is 1.8.

That's a real result, and it's worth reading the fine print before you lean on it:

• Half the people didn't finish. Only 34 of the 68 completed the study: 20 left for personal reasons, 11 were removed for poor compliance and 3 withdrew for adverse events (2 loose stool, 1 nausea). Results from 16 people on placebo and 18 on Release aren't much to go on.
• Funding. The author disclosed funding from GOLO under a research and consulting agreement.
• Size and setting. It was one clinical site, it ran for 13 weeks and the p-value only just cleared the usual cutoff.
• Both groups were dieting. The placebo group lost weight too, which shows how much of the effect comes from the plan.

Other research is thin. A 2017 open-label pilot of 27 people with type 2 diabetes had no comparison group. A larger study in prediabetes and type 2 diabetes is on ClinicalTrials.gov, but GOLO is its sponsor too, its listed status is unknown and we couldn't find results. So it's hard to separate the supplement from a structured, portion-controlled eating plan, which has plenty of evidence behind it on its own.

There's a legal footnote too. A false advertising class action filed in 2021 was dismissed in January 2024, as GOLO's newsroom and its law firm announced. In October 2025, the Ninth Circuit affirmed, holding the claim preempted because it depended on alleged federal violations that only the government can enforce. So that ruling didn't decide whether the marketing is true.

For a look at foods that support weight loss, our best foods for weight loss complete guide breaks down the science. You can also read what foods are good for weight loss.

GOLO diet pros & cons

What are the pros & cons of GOLO?

GOLO diet pros and cons

On cost, the Release page lists $49.95 for a 30-day supply, $44.95 per bottle for 60 days and $39.95 per bottle for 90 days. GOLO says each 90-capsule bottle lasts most people 30 to 45 days. That's 8 to 12 bottles a year, or about $320 to $600, on top of your groceries. It also offers a 60-day money-back guarantee.

GOLO diet safety & drug interactions

Who should be cautious with GOLO?

Two general points are worth knowing. First, the FDA advises talking with a health care professional before using any supplement, since some can interact with medicines or other supplements. NCCIH says the same about herbal products.

Second, the FDA warns that many weight loss products sold as supplements are contaminated with hidden drug ingredients. That's a general warning about the category, not a finding about Release. It's a reason to buy any supplement only from sources that clearly disclose what's in their products.

GOLO-style eating without the supplement

Can you follow GOLO without the supplement?

The plan's core rule is easy to copy: protein, vegetables, carbs and fats at each of three meals, in portions that fit your calorie needs. In the trial, even the placebo group lost an average of 3.38 kg on that approach, which is a fair preview of what the food can do without the supplement.

If the appeal is structure and convenience, there are other ways to get them. The hard part of portion control is usually doing it every day, on a weeknight, when you're tired. It's a workload problem more than a knowledge problem. Our Weight Loss Meal Plan provides portion-controlled, calorie-controlled meals with balanced macros, starting at $89.95 for 10 meals. With Build A Meal Plan, you pick your meals one by one and can filter by goal. You can check calories, protein, carbs and fat on our Nutrition Info page.

Make it easy withWeight Loss Meal PlanFrom $89.95View plan

If you like comparing diets, our piece asking is the Zone diet better than keto applies the same test.